diff --git a/modules/programs/waybar.nix b/modules/programs/waybar.nix
index faef644d3..12002d546 100644
--- a/modules/programs/waybar.nix
+++ b/modules/programs/waybar.nix
@@ -318,7 +318,7 @@ in {
 
         Service = {
           ExecStart = "${cfg.package}/bin/waybar";
-          ExecReload = "kill -SIGUSR2 $MAINPID";
+          ExecReload = "${pkgs.coreutils}/bin/kill -SIGUSR2 $MAINPID";
           Restart = "on-failure";
           KillMode = "mixed";
         };
diff --git a/tests/modules/programs/waybar/systemd-with-graphical-session-target.nix b/tests/modules/programs/waybar/systemd-with-graphical-session-target.nix
index 624ab5039..dc7a620fa 100644
--- a/tests/modules/programs/waybar/systemd-with-graphical-session-target.nix
+++ b/tests/modules/programs/waybar/systemd-with-graphical-session-target.nix
@@ -17,9 +17,10 @@ with lib;
       assertPathNotExists home-files/.config/waybar/config
       assertPathNotExists home-files/.config/waybar/style.css
 
-      assertFileContent \
-        home-files/.config/systemd/user/waybar.service \
-        ${./systemd-with-graphical-session-target.service}
+      serviceFile=$(normalizeStorePaths home-files/.config/systemd/user/waybar.service)
+      assertFileContent "$serviceFile" ${
+        ./systemd-with-graphical-session-target.service
+      }
     '';
   };
 }
diff --git a/tests/modules/programs/waybar/systemd-with-graphical-session-target.service b/tests/modules/programs/waybar/systemd-with-graphical-session-target.service
index a954207d3..e1343da8a 100644
--- a/tests/modules/programs/waybar/systemd-with-graphical-session-target.service
+++ b/tests/modules/programs/waybar/systemd-with-graphical-session-target.service
@@ -2,7 +2,7 @@
 WantedBy=sway-session.target
 
 [Service]
-ExecReload=kill -SIGUSR2 $MAINPID
+ExecReload=/nix/store/00000000000000000000000000000000-coreutils/bin/kill -SIGUSR2 $MAINPID
 ExecStart=@waybar@/bin/waybar
 KillMode=mixed
 Restart=on-failure