diff --git a/libs/binder/Android.mk b/libs/binder/Android.mk
index 3c6b8ad..673fc82 100644
--- a/libs/binder/Android.mk
+++ b/libs/binder/Android.mk
@@ -43,8 +43,10 @@
 LOCAL_SHARED_LIBRARIES := liblog libcutils libutils
 LOCAL_SRC_FILES := $(sources)
 ifneq ($(TARGET_USES_64_BIT_BINDER),true)
+ifneq ($(TARGET_IS_64_BIT),true)
 LOCAL_CFLAGS += -DBINDER_IPC_32BIT=1
 endif
+endif
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
@@ -53,6 +55,8 @@
 LOCAL_STATIC_LIBRARIES += libutils
 LOCAL_SRC_FILES := $(sources)
 ifneq ($(TARGET_USES_64_BIT_BINDER),true)
+ifneq ($(TARGET_IS_64_BIT),true)
 LOCAL_CFLAGS += -DBINDER_IPC_32BIT=1
 endif
+endif
 include $(BUILD_STATIC_LIBRARY)