diff --git a/pkg/tools/shell.go b/pkg/tools/shell.go
index a41279280..b8a811d03 100644
--- a/pkg/tools/shell.go
+++ b/pkg/tools/shell.go
@@ -60,7 +60,6 @@ var (
 		regexp.MustCompile(`\bpkill\b`),
 		regexp.MustCompile(`\bkillall\b`),
 		regexp.MustCompile(`\bkill\b`),
-		regexp.MustCompile(`\bkill\s+-[9]\b`),
 		regexp.MustCompile(`\bcurl\b.*\|\s*(sh|bash)`),
 		regexp.MustCompile(`\bwget\b.*\|\s*(sh|bash)`),
 		regexp.MustCompile(`\bnpm\s+install\s+-g\b`),