diff --git a/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp b/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp
index e434555d71..2e181b9569 100644
--- a/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp
+++ b/src/openrct2-ui/drawing/engines/opengl/OpenGLDrawingEngine.cpp
@@ -130,7 +130,7 @@ public:
     {
     }
 
-    virtual void Draw(int32_t x, int32_t y, int32_t width, int32_t height, int32_t xStart, int32_t yStart)
+    virtual void Draw(int32_t x, int32_t y, int32_t width, int32_t height, int32_t xStart, int32_t yStart) override
     {
         const uint8_t* pattern = RainPattern;