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;
     }
diff --git a/test/test_version.cpp b/test/test_version.cpp
index d447e10..ee41bf1 100644
--- a/test/test_version.cpp
+++ b/test/test_version.cpp
@@ -45,7 +45,7 @@
         fs::remove_all(tmpDir);
     }
 
-    void writeFile(const fs::path& file, const char* data)
+    static void writeFile(const fs::path& file, const char* data)
     {
         std::ofstream f{file};
         f << data;