diff --git a/sync_manager.hpp b/sync_manager.hpp
index 98e7b95..82fe266 100644
--- a/sync_manager.hpp
+++ b/sync_manager.hpp
@@ -32,7 +32,7 @@
      * @param[in] entryPath - The file or directory to process.
      * @param[out] result - 0 if successful.
      */
-    int processEntry(int mask, const fs::path& entryPath);
+    static int processEntry(int mask, const fs::path& entryPath);
 };
 
 } // namespace manager