diff --git a/lib/MC/MCMachOStreamer.cpp b/lib/MC/MCMachOStreamer.cpp
index 41c82b3..87ea99f 100644
--- a/lib/MC/MCMachOStreamer.cpp
+++ b/lib/MC/MCMachOStreamer.cpp
@@ -83,7 +83,7 @@
 
 public:
   MCMachOStreamer(MCContext &Context, raw_ostream &_OS, MCCodeEmitter *_Emitter)
-    : MCStreamer(Context), Assembler(_OS), Emitter(_Emitter),
+    : MCStreamer(Context), Assembler(Context, _OS), Emitter(_Emitter),
       CurSectionData(0) {}
   ~MCMachOStreamer() {}