diff --git a/src/modules/graphics/opengl/wrap_Graphics.cpp b/src/modules/graphics/opengl/wrap_Graphics.cpp
index 4727e47af..9ed00a2b5 100644
--- a/src/modules/graphics/opengl/wrap_Graphics.cpp
+++ b/src/modules/graphics/opengl/wrap_Graphics.cpp
@@ -168,6 +168,7 @@ int w_stencil(lua_State *L)
 	instance()->drawToStencilBuffer(true);
 
 	// Call stencilfunc()
+    lua_pushvalue(L, 1);
 	lua_call(L, 0, 0);
 
 	instance()->drawToStencilBuffer(false);