diff --git a/xpcom/io/SpecialSystemDirectory.cpp b/xpcom/io/SpecialSystemDirectory.cpp
index 44256ffd3..e7ac26905 100644
--- a/xpcom/io/SpecialSystemDirectory.cpp
+++ b/xpcom/io/SpecialSystemDirectory.cpp
@@ -102,9 +102,9 @@ GetWindowsFolder(int aFolder, nsIFile** aFile)
 {
   WCHAR path_orig[MAX_PATH + 3];
   WCHAR* path = path_orig + 1;
-  HRESULT result = SHGetSpecialFolderPathW(nullptr, path, aFolder, true);
+  BOOL result = SHGetSpecialFolderPathW(nullptr, path, aFolder, true);
 
-  if (!SUCCEEDED(result)) {
+  if (!result) {
     return NS_ERROR_FAILURE;
   }