diff --git a/nix-monitor/nix_monitor_service.luau b/nix-monitor/nix_monitor_service.luau
index 036de2b..539347c 100644
--- a/nix-monitor/nix_monitor_service.luau
+++ b/nix-monitor/nix_monitor_service.luau
@@ -26,7 +26,7 @@ function killWithPidFile(file)
         local pid = noctalia.string.trim(noctalia.readFile(file))
 
         if type(pid) == "string" and pid ~= "" then
-            noctalia.runAsync(`pkill -9 -P {pid}`)
+            noctalia.runAsync(`pkill -9 -P {pid} && kill -9 {pid}`)
         end
         noctalia.removeFile(file)
     end
diff --git a/nix-monitor/plugin.toml b/nix-monitor/plugin.toml
index a9f42ee..67aab9b 100644
--- a/nix-monitor/plugin.toml
+++ b/nix-monitor/plugin.toml
@@ -6,7 +6,7 @@ icon            = "package"
 author          = "avivbintangaringga"
 description     = "Nixpkgs update monitor"
 tags            = [ "nixos", "utility" ]
-dependencies    = [ "nix", "nixos-version", "nixos-rebuild", "git", "du", "cat", "awk", "grep", "tail", "wc", "pkill" ]
+dependencies    = [ "nix", "nixos-version", "nixos-rebuild", "git", "du", "cat", "awk", "grep", "tail", "wc", "kill", "pkill" ]
 license         = "MIT"
 
 [[widget]]