diff --git a/tools/run_desktop_tests.py b/tools/run_desktop_tests.py
index 61f49cc2fd..e63d35928e 100755
--- a/tools/run_desktop_tests.py
+++ b/tools/run_desktop_tests.py
@@ -34,8 +34,8 @@ workspace_path = "omim-build-release/out/release"
 skiplist = []
 runlist = []
 logfile = "testlog.log"
-data_path = None
-user_resource_path = None
+data_path = ""
+user_resource_path = ""