diff --git a/mozilla/xpcom/io/nsLocalFileCommon.cpp b/mozilla/xpcom/io/nsLocalFileCommon.cpp
index db56cd3faf9..f17c26778d0 100644
--- a/mozilla/xpcom/io/nsLocalFileCommon.cpp
+++ b/mozilla/xpcom/io/nsLocalFileCommon.cpp
@@ -35,7 +35,7 @@
 #include "nsLocalFileMac.h"
 #endif
 
-#ifdef XP_UNIX
+#if defined(XP_UNIX) || defined(XP_BEOS)
 #include "nsLocalFileUnix.h"
 #endif