diff --git a/IceCubesApp.xcodeproj/project.pbxproj b/IceCubesApp.xcodeproj/project.pbxproj
index 931488fa..648ab394 100644
--- a/IceCubesApp.xcodeproj/project.pbxproj
+++ b/IceCubesApp.xcodeproj/project.pbxproj
@@ -1176,7 +1176,7 @@
 					"@executable_path/../../Frameworks",
 				);
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = com.thomasricouard.IceCubesApp.IceCubesAppWidgetsExtension;
+				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_ID_PREFIX).IceCubesApp.IceCubesAppWidgetsExtension";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
@@ -1212,7 +1212,7 @@
 					"@executable_path/../../Frameworks",
 				);
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = com.thomasricouard.IceCubesApp.IceCubesAppWidgetsExtension;
+				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_ID_PREFIX).IceCubesApp.IceCubesAppWidgetsExtension";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;