diff --git a/src/main.c b/src/main.c
index 664de05..3edcb00 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1003,6 +1003,9 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
             }
             else if (wParam == WA_INACTIVE)
             {
+                if (!ddraw->windowed && !ddraw->locked)
+                    return 0;
+
                 mouse_unlock();
 
                 if (ddraw->wine && LastSetWindowPosTick + 500 > timeGetTime())