diff --git a/test/test_item_updater.cpp b/test/test_item_updater.cpp
index 096e15f..7fd1e7a 100644
--- a/test/test_item_updater.cpp
+++ b/test/test_item_updater.cpp
@@ -46,7 +46,7 @@
         return itemUpdater->activations;
     }
 
-    std::string getObjPath(const std::string& versionId)
+    static std::string getObjPath(const std::string& versionId)
     {
         return std::string(dBusPath) + "/" + versionId;
     }