diff --git a/tests/utils.h b/tests/utils.h
index 08e8cea..4391f41 100644
--- a/tests/utils.h
+++ b/tests/utils.h
@@ -122,6 +122,9 @@
 // The absolute path to the executable
 const std::string& get_executable_path();
 
+// Get realpath
+bool get_realpath(const std::string& path, std::string* realpath);
+
 // Access to argc/argv/envp
 int get_argc();
 char** get_argv();