diff --git a/src/common/file_util.cpp b/src/common/file_util.cpp
index 349ec5d9a2..391c633f9e 100644
--- a/src/common/file_util.cpp
+++ b/src/common/file_util.cpp
@@ -581,7 +581,7 @@ std::string GetBundleDirectory() {
 #endif
 
 #ifdef _WIN32
-std::string& GetExeDirectory() {
+const std::string& GetExeDirectory() {
     static std::string exe_path;
     if (exe_path.empty()) {
         wchar_t wchar_exe_path[2048];
diff --git a/src/common/file_util.h b/src/common/file_util.h
index ef2f5e8dbe..4ed02f30f4 100644
--- a/src/common/file_util.h
+++ b/src/common/file_util.h
@@ -133,7 +133,7 @@ std::string GetBundleDirectory();
 #endif
 
 #ifdef _WIN32
-std::string& GetExeDirectory();
+const std::string& GetExeDirectory();
 std::string AppDataRoamingDirectory();
 #endif