diff --git a/tests/tools.at b/tests/tools.at
index 4993b3f5..28b96408 100644
--- a/tests/tools.at
+++ b/tests/tools.at
@@ -155,8 +155,8 @@ do
   file=" file $funny"
   outfile="$file out "
   dir=`func_sanitize_dir_name " dir $funny"`
-  cachedir=" cache$dir"
-  TMPDIR=" tmp$dir"
+  cachedir="./ cache$dir"
+  TMPDIR="./ tmp$dir"
   export TMPDIR

   # skip if we cannot create such a file or directory
@@ -1361,7 +1361,7 @@ do
   funny=`func_sanitize_file_name "$funny"`
   file=" file $funny"
   dir=`func_sanitize_dir_name " dir $funny"`
-  TMPDIR=" tmp$dir"
+  TMPDIR="./ tmp$dir"
   export TMPDIR

   # skip if we cannot create such a file or directory