diff --git a/Makefile b/Makefile
index 39cad38..c8126cc 100644
--- a/Makefile
+++ b/Makefile
@@ -32,7 +32,6 @@ else
     LDFLAGS += -lsocket
   endif
   ifeq ($(OS),Darwin)
-    CFLAGS += -arch x86_64
     LIBEXT := .dylib
     SHARED := -dynamiclib -install_name libhdhomerun$(LIBEXT)
   endif