diff --git a/Makefile b/Makefile
index ba39d1f8..f8748a18 100644
--- a/Makefile
+++ b/Makefile
@@ -257,6 +257,11 @@ ifeq ($(PLATFORM),linux)
     # linux32 make ...
     BASE_CFLAGS += -m32
     LDFLAGS+=-m32
+  else
+  ifeq ($(ARCH),ppc64)
+    BASE_CFLAGS += -m64
+    LDFLAGS += -m64
+  endif
   endif
 
   DEBUG_CFLAGS = $(BASE_CFLAGS) -g -O0