diff --git a/source/blender/gpu/intern/gpu_shader_builder_stubs.cc b/source/blender/gpu/intern/gpu_shader_builder_stubs.cc
index 97d4a5229f8..07ccafb6fb7 100644
--- a/source/blender/gpu/intern/gpu_shader_builder_stubs.cc
+++ b/source/blender/gpu/intern/gpu_shader_builder_stubs.cc
@@ -35,9 +35,10 @@
 
 extern "C" {
 Global G;
-UserDef U;
 }
 
+UserDef U;
+
 /* -------------------------------------------------------------------- */
 /** \name Stubs of BLI_imbuf_types.h
  * \{ */