diff --git a/tests/helper/helper_generic.go b/tests/helper/helper_generic.go
index 55ad49b5408..bab90e2bbef 100644
--- a/tests/helper/helper_generic.go
+++ b/tests/helper/helper_generic.go
@@ -196,6 +196,8 @@ func RunCmdWithMatchOutputFromBuffer(timeoutAfter time.Duration, matchString, pr
 		return false, err
 	}
 
+	defer command.Process.Kill()
+
 	// go routine which is reading data from buffer until expected string matched
 	go func() {
 		for {