diff --git a/gst/autoplug/gstspideridentity.h b/gst/autoplug/gstspideridentity.h
index bcc9bc8598..42f5e10cbb 100644
--- a/gst/autoplug/gstspideridentity.h
+++ b/gst/autoplug/gstspideridentity.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_spider_identity_details;
+extern GstElementDetails gst_spider_identity_details;
 
 
 #define GST_TYPE_SPIDER_IDENTITY \
diff --git a/gst/elements/gstfakesink.h b/gst/elements/gstfakesink.h
index 94a9b2a3b5..492e76311a 100644
--- a/gst/elements/gstfakesink.h
+++ b/gst/elements/gstfakesink.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_fakesink_details;
+extern GstElementDetails gst_fakesink_details;
 
 
 #define GST_TYPE_FAKESINK \
diff --git a/gst/elements/gstfakesrc.h b/gst/elements/gstfakesrc.h
index 61c64840ad..1f13d74c04 100644
--- a/gst/elements/gstfakesrc.h
+++ b/gst/elements/gstfakesrc.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_fakesrc_details;
+extern GstElementDetails gst_fakesrc_details;
 
 typedef enum {
   FAKESRC_FIRST_LAST_LOOP = 1,
diff --git a/gst/elements/gstfdsink.h b/gst/elements/gstfdsink.h
index 2b4f385c2d..24e62ce40b 100644
--- a/gst/elements/gstfdsink.h
+++ b/gst/elements/gstfdsink.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_fdsink_details;
+extern GstElementDetails gst_fdsink_details;
 
 
 #define GST_TYPE_FDSINK \
diff --git a/gst/elements/gstfdsrc.h b/gst/elements/gstfdsrc.h
index dfa49b660a..7208ba8980 100644
--- a/gst/elements/gstfdsrc.h
+++ b/gst/elements/gstfdsrc.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_fdsrc_details;
+extern GstElementDetails gst_fdsrc_details;
 
 
 #define GST_TYPE_FDSRC \
diff --git a/gst/elements/gstfilesink.h b/gst/elements/gstfilesink.h
index b9da6888c1..57dcf60894 100644
--- a/gst/elements/gstfilesink.h
+++ b/gst/elements/gstfilesink.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_filesink_details;
+extern GstElementDetails gst_filesink_details;
 
 
 #define GST_TYPE_FILESINK \
diff --git a/gst/elements/gstidentity.h b/gst/elements/gstidentity.h
index 6987404f44..441a683680 100644
--- a/gst/elements/gstidentity.h
+++ b/gst/elements/gstidentity.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_identity_details;
+extern GstElementDetails gst_identity_details;
 
 
 #define GST_TYPE_IDENTITY \
diff --git a/gst/elements/gstmd5sink.h b/gst/elements/gstmd5sink.h
index 2ad4fdb6d4..5de3ac0398 100644
--- a/gst/elements/gstmd5sink.h
+++ b/gst/elements/gstmd5sink.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_md5sink_details;
+extern GstElementDetails gst_md5sink_details;
 
 
 #define GST_TYPE_MD5SINK \
diff --git a/gst/elements/gstmultidisksrc.h b/gst/elements/gstmultidisksrc.h
index eca04e155b..f70d355fae 100644
--- a/gst/elements/gstmultidisksrc.h
+++ b/gst/elements/gstmultidisksrc.h
@@ -28,7 +28,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_multidisksrc_details;
+extern GstElementDetails gst_multidisksrc_details;
 
 #define GST_TYPE_MULTIDISKSRC \
   (gst_multidisksrc_get_type())
diff --git a/gst/elements/gstmultifilesrc.h b/gst/elements/gstmultifilesrc.h
index eca04e155b..f70d355fae 100644
--- a/gst/elements/gstmultifilesrc.h
+++ b/gst/elements/gstmultifilesrc.h
@@ -28,7 +28,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_multidisksrc_details;
+extern GstElementDetails gst_multidisksrc_details;
 
 #define GST_TYPE_MULTIDISKSRC \
   (gst_multidisksrc_get_type())
diff --git a/gst/elements/gstpipefilter.h b/gst/elements/gstpipefilter.h
index 7699f4e28d..171af6e957 100644
--- a/gst/elements/gstpipefilter.h
+++ b/gst/elements/gstpipefilter.h
@@ -31,7 +31,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_pipefilter_details;
+extern GstElementDetails gst_pipefilter_details;
 
 #define GST_TYPE_PIPEFILTER \
   (gst_pipefilter_get_type())
diff --git a/gst/elements/gstshaper.h b/gst/elements/gstshaper.h
index 40540b1767..fa06e0af9c 100644
--- a/gst/elements/gstshaper.h
+++ b/gst/elements/gstshaper.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_shaper_details;
+extern GstElementDetails gst_shaper_details;
 
 
 #define GST_TYPE_SHAPER \
diff --git a/gst/elements/gststatistics.h b/gst/elements/gststatistics.h
index ae0242f0d3..1dee134bdb 100644
--- a/gst/elements/gststatistics.h
+++ b/gst/elements/gststatistics.h
@@ -29,7 +29,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_statistics_details;
+extern GstElementDetails gst_statistics_details;
 
 
 #define GST_TYPE_STATISTICS \
diff --git a/plugins/elements/gstfakesink.h b/plugins/elements/gstfakesink.h
index 94a9b2a3b5..492e76311a 100644
--- a/plugins/elements/gstfakesink.h
+++ b/plugins/elements/gstfakesink.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_fakesink_details;
+extern GstElementDetails gst_fakesink_details;
 
 
 #define GST_TYPE_FAKESINK \
diff --git a/plugins/elements/gstfakesrc.h b/plugins/elements/gstfakesrc.h
index 61c64840ad..1f13d74c04 100644
--- a/plugins/elements/gstfakesrc.h
+++ b/plugins/elements/gstfakesrc.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_fakesrc_details;
+extern GstElementDetails gst_fakesrc_details;
 
 typedef enum {
   FAKESRC_FIRST_LAST_LOOP = 1,
diff --git a/plugins/elements/gstfdsink.h b/plugins/elements/gstfdsink.h
index 2b4f385c2d..24e62ce40b 100644
--- a/plugins/elements/gstfdsink.h
+++ b/plugins/elements/gstfdsink.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_fdsink_details;
+extern GstElementDetails gst_fdsink_details;
 
 
 #define GST_TYPE_FDSINK \
diff --git a/plugins/elements/gstfdsrc.h b/plugins/elements/gstfdsrc.h
index dfa49b660a..7208ba8980 100644
--- a/plugins/elements/gstfdsrc.h
+++ b/plugins/elements/gstfdsrc.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_fdsrc_details;
+extern GstElementDetails gst_fdsrc_details;
 
 
 #define GST_TYPE_FDSRC \
diff --git a/plugins/elements/gstfilesink.h b/plugins/elements/gstfilesink.h
index b9da6888c1..57dcf60894 100644
--- a/plugins/elements/gstfilesink.h
+++ b/plugins/elements/gstfilesink.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_filesink_details;
+extern GstElementDetails gst_filesink_details;
 
 
 #define GST_TYPE_FILESINK \
diff --git a/plugins/elements/gstidentity.h b/plugins/elements/gstidentity.h
index 6987404f44..441a683680 100644
--- a/plugins/elements/gstidentity.h
+++ b/plugins/elements/gstidentity.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_identity_details;
+extern GstElementDetails gst_identity_details;
 
 
 #define GST_TYPE_IDENTITY \
diff --git a/plugins/elements/gstmd5sink.h b/plugins/elements/gstmd5sink.h
index 2ad4fdb6d4..5de3ac0398 100644
--- a/plugins/elements/gstmd5sink.h
+++ b/plugins/elements/gstmd5sink.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_md5sink_details;
+extern GstElementDetails gst_md5sink_details;
 
 
 #define GST_TYPE_MD5SINK \
diff --git a/plugins/elements/gstmultidisksrc.h b/plugins/elements/gstmultidisksrc.h
index eca04e155b..f70d355fae 100644
--- a/plugins/elements/gstmultidisksrc.h
+++ b/plugins/elements/gstmultidisksrc.h
@@ -28,7 +28,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_multidisksrc_details;
+extern GstElementDetails gst_multidisksrc_details;
 
 #define GST_TYPE_MULTIDISKSRC \
   (gst_multidisksrc_get_type())
diff --git a/plugins/elements/gstmultifilesrc.h b/plugins/elements/gstmultifilesrc.h
index eca04e155b..f70d355fae 100644
--- a/plugins/elements/gstmultifilesrc.h
+++ b/plugins/elements/gstmultifilesrc.h
@@ -28,7 +28,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_multidisksrc_details;
+extern GstElementDetails gst_multidisksrc_details;
 
 #define GST_TYPE_MULTIDISKSRC \
   (gst_multidisksrc_get_type())
diff --git a/plugins/elements/gstpipefilter.h b/plugins/elements/gstpipefilter.h
index 7699f4e28d..171af6e957 100644
--- a/plugins/elements/gstpipefilter.h
+++ b/plugins/elements/gstpipefilter.h
@@ -31,7 +31,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_pipefilter_details;
+extern GstElementDetails gst_pipefilter_details;
 
 #define GST_TYPE_PIPEFILTER \
   (gst_pipefilter_get_type())
diff --git a/plugins/elements/gstshaper.h b/plugins/elements/gstshaper.h
index 40540b1767..fa06e0af9c 100644
--- a/plugins/elements/gstshaper.h
+++ b/plugins/elements/gstshaper.h
@@ -30,7 +30,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_shaper_details;
+extern GstElementDetails gst_shaper_details;
 
 
 #define GST_TYPE_SHAPER \
diff --git a/plugins/elements/gststatistics.h b/plugins/elements/gststatistics.h
index ae0242f0d3..1dee134bdb 100644
--- a/plugins/elements/gststatistics.h
+++ b/plugins/elements/gststatistics.h
@@ -29,7 +29,7 @@
 
 G_BEGIN_DECLS
 
-GstElementDetails gst_statistics_details;
+extern GstElementDetails gst_statistics_details;
 
 
 #define GST_TYPE_STATISTICS \