diff --git a/client/src/main.c b/client/src/main.c
index ddafeae2..f5afae42 100644
--- a/client/src/main.c
+++ b/client/src/main.c
@@ -758,7 +758,7 @@ int main_frameThread(void * unused)
       break;
     }
 
-    if (frame->flags && FRAME_FLAG_REQUEST_ACTIVATION)
+    if (frame->flags & FRAME_FLAG_REQUEST_ACTIVATION)
       g_state.ds->requestActivation();
 
     const bool blockScreensaver = frame->flags & FRAME_FLAG_BLOCK_SCREENSAVER;