diff --git a/src/common/filefn.cpp b/src/common/filefn.cpp
index 699b87b180..0155530824 100644
--- a/src/common/filefn.cpp
+++ b/src/common/filefn.cpp
@@ -1510,9 +1510,9 @@ wxString wxGetOSDirectory()
 #endif
 }
 
-bool wxEndsWithPathSeparator(const char *pszFileName)
+bool wxEndsWithPathSeparator(const wxChar *pszFileName)
 {
-  size_t len = Strlen(pszFileName);
+  size_t len = wxStrlen(pszFileName);
   if ( len == 0 )
     return FALSE;
   else