diff --git a/tests/scripts/key-exchanges.pl b/tests/scripts/key-exchanges.pl
index 528812a..5ce8900 100755
--- a/tests/scripts/key-exchanges.pl
+++ b/tests/scripts/key-exchanges.pl
@@ -33,7 +33,8 @@
 system( "cp $config_h $config_h.bak" ) and die;
 sub abort {
     system( "mv $config_h.bak $config_h" ) and warn "$config_h not restored\n";
-    die $_[0];
+    warn $_[0];
+    exit 1;
 }
 
 for my $kex (@kexes) {