diff --git a/src/common/dynlib.cpp b/src/common/dynlib.cpp
index f4cb7d11bc..558b579e0c 100644
--- a/src/common/dynlib.cpp
+++ b/src/common/dynlib.cpp
@@ -146,7 +146,7 @@ wxLibrary::wxLibrary(wxDllType handle)
     m_handle = handle;
 
     // Some system may use a local heap for library.
-    get_first = (t_get_first)GetSymbol("wxGetClassFirst");
+    get_first = (t_get_first)GetSymbol(_T("wxGetClassFirst"));
     // It is a wxWindows DLL.
     if (get_first)
         PrepareClasses(get_first());