diff --git a/src/render_gdi.c b/src/render_gdi.c
index f4e5746..5ad3586 100644
--- a/src/render_gdi.c
+++ b/src/render_gdi.c
@@ -162,6 +162,12 @@ DWORD WINAPI gdi_render_main(void)
 
         LeaveCriticalSection(&g_ddraw.cs);
 
+        /* Force redraw for GDI games (ClueFinders) */
+        if (!g_ddraw.primary)
+        {
+            RedrawWindow(g_ddraw.hwnd, NULL, NULL, RDW_INVALIDATE | RDW_ALLCHILDREN);
+        }
+
         if (!g_ddraw.render.run)
             break;