diff --git a/hisat2 b/hisat2
index 0f128b9e..66ba2c12 100755
--- a/hisat2
+++ b/hisat2
@@ -361,6 +361,7 @@ sub Error {
 
 sub Fail {
     Error(@_);
+    kill 'TERM', @to_kills;
     die("Exiting now ...\n");    
 }