diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index 05543925b9e..0e48cdb1d11 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -319,7 +319,7 @@ void shader_glsl_load_constants(
         /* Upload the position fixup params */
         pos = GL_EXTCALL(glGetUniformLocationARB(programId, "posFixup"));
         checkGLcall("glGetUniformLocationARB");
-        glUniform4fvARB(pos, 1, &vshader_impl->wineD3DDevice->posFixup[0]);
+        GL_EXTCALL(glUniform4fvARB(pos, 1, &vshader_impl->wineD3DDevice->posFixup[0]));
         checkGLcall("glUniform4fvARB");
     }