diff --git a/Kit/process.swift b/Kit/process.swift
index 7ab90502..79a5273b 100644
--- a/Kit/process.swift
+++ b/Kit/process.swift
@@ -265,7 +265,7 @@ public class ProcessView: NSStackView {
     
     @objc private func kill() {
         if let pid = self.pid {
-            asyncShell("kill \(pid)")
+            _ = syncShell("kill -9 \(pid)")
         }
     }
 }