diff --git a/mozilla/extensions/universalchardet/macbuild/UniversalchardetPrefix.h b/mozilla/extensions/universalchardet/macbuild/UniversalchardetPrefix.h
new file mode 100644
index 00000000000..a8e12e2e09c
--- /dev/null
+++ b/mozilla/extensions/universalchardet/macbuild/UniversalchardetPrefix.h
@@ -0,0 +1,3 @@
+
+
+#include "MacSharedPrefix.h"
diff --git a/mozilla/extensions/universalchardet/macbuild/UniversalchardetPrefix_Debug.h b/mozilla/extensions/universalchardet/macbuild/UniversalchardetPrefix_Debug.h
new file mode 100644
index 00000000000..d7701970653
--- /dev/null
+++ b/mozilla/extensions/universalchardet/macbuild/UniversalchardetPrefix_Debug.h
@@ -0,0 +1,3 @@
+
+
+#include "MacSharedPrefix_debug.h"