diff --git a/src/modules/graphics/opengl/wrap_Graphics.cpp b/src/modules/graphics/opengl/wrap_Graphics.cpp
index dfb2bc441..86f1c3261 100644
--- a/src/modules/graphics/opengl/wrap_Graphics.cpp
+++ b/src/modules/graphics/opengl/wrap_Graphics.cpp
@@ -391,7 +391,7 @@ namespace opengl
 			lua_pushstring(L, e.what());
 			lua_pcall(L, 1,1, 0);
 			const char* err = lua_tostring(L, -1);
-			return luaL_error(L, err);
+			return luaL_error(L, "%s", err);
 		}
 
 		return 1;