diff --git a/src/graphic/Fast3D/gfx_dxgi.cpp b/src/graphic/Fast3D/gfx_dxgi.cpp
index 976e06192..eb07ddade 100644
--- a/src/graphic/Fast3D/gfx_dxgi.cpp
+++ b/src/graphic/Fast3D/gfx_dxgi.cpp
@@ -401,6 +401,7 @@ static LRESULT CALLBACK gfx_dxgi_wnd_proc(HWND h_wnd, UINT message, WPARAM w_par
                     }
                 }
             }
+            break;
 
         case WM_ACTIVATEAPP:
             if (dxgi.on_all_keys_up != nullptr) {