diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 0d10805..a7a74f0 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1735,9 +1735,9 @@
 	$minconfig = $addconfig;
 
     } elsif (defined($addconfig)) {
-	run_command "cat $addconfig $minconfig > $tmpdir/use_config" or
+	run_command "cat $addconfig $minconfig > $tmpdir/add_config" or
 	    dodie "Failed to create temp config";
-	$minconfig = "$tmpdir/use_config";
+	$minconfig = "$tmpdir/add_config";
     }
 
     my $checkout = $opt{"CHECKOUT[$i]"};