diff --git a/test/test-vars.sh b/test/test-vars.sh
index 812bcf81..02d60f89 100644
--- a/test/test-vars.sh
+++ b/test/test-vars.sh
@@ -44,6 +44,10 @@ unset GREP_OPTIONS
 # For lib/open.cc:_load_key_file
 unset XDG_CONFIG_HOME
 
+# for lib/open.cc:_choose_database_path
+unset XDG_DATA_HOME
+unset MAILDIR
+
 # For emacsclient
 unset ALTERNATE_EDITOR