diff --git a/reactos/dll/win32/uxtheme/property.c b/reactos/dll/win32/uxtheme/property.c
index f3e1c1295a6..bb76232aca2 100644
--- a/reactos/dll/win32/uxtheme/property.c
+++ b/reactos/dll/win32/uxtheme/property.c
@@ -194,7 +194,7 @@ HRESULT WINAPI GetThemeString(HTHEME hTheme, int iPartId, int iStateId,
     if(!hTheme)
         return E_HANDLE;
 
-    if(!(tp = MSSTYLES_FindProperty(hTheme, iPartId, iStateId, TMT_FILENAME, iPropId)))
+    if(!(tp = MSSTYLES_FindProperty(hTheme, iPartId, iStateId, TMT_STRING, iPropId)))
         return E_PROP_ID_UNSUPPORTED;
     return MSSTYLES_GetPropertyString(tp, pszBuff, cchMaxBuffChars);
 }