diff --git a/bin/kill-matching b/bin/kill-matching
index 5839e64..f01ae1b 100755
--- a/bin/kill-matching
+++ b/bin/kill-matching
@@ -4,4 +4,4 @@ if (( ${#@} < 1 || ${#@} > 1 )); then
     exit 2
 fi
 
-ps aux | grep "[^]]$1" | awk '{print $2}' | xargs kill
+ps ax | grep "[^]]$1" | awk '{print $1}' | xargs kill