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-rw-r--r--app/active_window_watcher_x.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/app/active_window_watcher_x.h b/app/active_window_watcher_x.h
index 0934ad4..642b63d 100644
--- a/app/active_window_watcher_x.h
+++ b/app/active_window_watcher_x.h
@@ -4,6 +4,7 @@
#ifndef APP_ACTIVE_WINDOW_WATCHER_X_H_
#define APP_ACTIVE_WINDOW_WATCHER_X_H_
+#pragma once
#include <gdk/gdk.h>