diff --git a/bin/tests/test-io b/bin/tests/test-io
index 8d41816a3a8f0020c422b0cf63b972e1302890ed..5cc776ac29185c1e4f5b6e9b68ee5fb38f040b3c 100755
--- a/bin/tests/test-io
+++ b/bin/tests/test-io
@@ -13,7 +13,7 @@ then
 		evaluate tests/io_tests/small-out-missing tests/io_tests/small-GT
 		evaluate tests/io_tests/small-out-extra tests/io_tests/small-GT
 
-		mkdir -f $branch-out
+		mkdir $branch-out
 		mv Results_* $branch-out
 	done
 fi