diff --git a/.scripts/refresh-waybar-pkg-update-count.hook b/.scripts/refresh-waybar-pkg-update-count.hook
index 78da4fa..e001b84 100644
--- a/.scripts/refresh-waybar-pkg-update-count.hook
+++ b/.scripts/refresh-waybar-pkg-update-count.hook
@@ -7,4 +7,4 @@ Target = *
 
 [Action]
 When = PostTransaction
-Exec = /bin/pkill -SIGRTMIN+3 -u 1000 waybar
+Exec = /bin/sh -c '! /bin/pgrep -u 1000 waybar || /bin/pkill -SIGRTMIN+3 -u 1000 waybar'