diff --git a/Gir_Gst.toml b/Gir_Gst.toml
index a648070c0..d4aa7a568 100644
--- a/Gir_Gst.toml
+++ b/Gir_Gst.toml
@@ -91,7 +91,6 @@ conversion_type = "scalar"
 
 [[object]]
 name = "Gst.Bin"
-subclassing = true
 status = "generate"
 trait_name = "GstBinExt"
     [[object.signal]]
@@ -319,7 +318,6 @@ ref_mode = "ref"
 
 [[object]]
 name = "Gst.Pipeline"
-subclassing = true
 status = "generate"
 
 [[object]]
@@ -360,7 +358,6 @@ status = "generate"
 
 [[object]]
 name = "Gst.Element"
-subclassing = true
 status = "generate"
     [[object.function]]
     name = "make_from_uri"
@@ -658,7 +655,6 @@ trait_name = "GstObjectExt"
 
 [[object]]
 name = "Gst.Pad"
-subclassing = true
 status = "generate"
     [[object.function]]
     name = "link_maybe_ghosting"
@@ -861,7 +857,6 @@ final_type = true
 
 [[object]]
 name = "Gst.GhostPad"
-subclassing = true
 status = "generate"
     [[object.function]]
     name = "set_target"
diff --git a/Gir_GstBase.toml b/Gir_GstBase.toml
index c3d59aba8..ca1e9de46 100644
--- a/Gir_GstBase.toml
+++ b/Gir_GstBase.toml
@@ -77,7 +77,6 @@ concurrency = "none"
 
 [[object]]
 name = "GstBase.BaseSink"
-subclassing = true
 status = "generate"
 
     [[object.function]]
@@ -92,7 +91,6 @@ status = "generate"
 
 [[object]]
 name = "GstBase.BaseSrc"
-subclassing = true
 status = "generate"
 
     [[object.function]]
@@ -122,7 +120,6 @@ status = "generate"
 
 [[object]]
 name = "GstBase.BaseTransform"
-subclassing = true
 status = "generate"
 
     [[object.function]]
@@ -134,7 +131,6 @@ status = "generate"
 [[object]]
 name = "GstBase.Aggregator"
 status = "generate"
-subclassing = true
 version = "1.14"
 
     [[object.function]]
@@ -154,7 +150,6 @@ version = "1.14"
 [[object]]
 name = "GstBase.AggregatorPad"
 status = "generate"
-subclassing = true
 version = "1.14"
 
 [[object]]
@@ -207,7 +202,6 @@ ref_mode = "ref"
 
 [[object]]
 name = "GstBase.BaseParse"
-subclassing = true
 status = "generate"
     [[object.function]]
     name = "finish_frame"
diff --git a/Gir_GstVideo.toml b/Gir_GstVideo.toml
index d2bbdb507..029fabec1 100644
--- a/Gir_GstVideo.toml
+++ b/Gir_GstVideo.toml
@@ -86,7 +86,6 @@ status = "generate"
 
 [[object]]
 name = "GstVideo.VideoDecoder"
-subclassing = true
 status = "generate"
 
     [[object.function]]
@@ -151,7 +150,6 @@ status = "generate"
 
 [[object]]
 name = "GstVideo.VideoEncoder"
-subclassing = true
 status = "generate"
 
     [[object.function]]