diff --git a/Makefile b/Makefile
index fec7452..01412c6 100644
--- a/Makefile
+++ b/Makefile
@@ -20,6 +20,8 @@ PKG_CONFIG_DEPENDS:= \
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
 
+CWMP_REVISION:=$(shell svnversion $(PWD) -n|cut -f2 -d:)
+
 include $(INCLUDE_DIR)/package.mk
 
 define Package/cwmp/Default
@@ -60,6 +62,13 @@ endif
 
 TARGET_CFLAGS += \
 	-D_GNU_SOURCE
+	
+ifneq ($(CWMP_REVISION)_,_)
+ifneq ($(CWMP_REVISION),exported)
+TARGET_CFLAGS += -DCWMP_REVISION=\"$(CWMP_REVISION)\"
+TARGET_LDFLAGS += -DCWMP_REVISION=\"$(CWMP_REVISION)\"
+endif
+endif
 
 TARGET_LDFLAGS += \
 	-Wl,-rpath-link=$(STAGING_DIR)/usr/lib
diff --git a/src/bin/Makefile.am b/src/bin/Makefile.am
index e9732a8..b4ddfd1 100644
--- a/src/bin/Makefile.am
+++ b/src/bin/Makefile.am
@@ -45,8 +45,6 @@ cwmpd_LDADD =			\
 	$(LIBZSTREAM_LIBS)	\
 	$(LIBPTHREAD_LIBS)
 
-CWMP_REVISION=$(shell svnversion $(PWD) -n|cut -f2 -d:)
-
 cwmpd_CFLAGS+=-DCWMP_VERSION=\"$(CWMP_VERSION)\"
 cwmpd_LDFLAGS+=-DCWMP_VERSION=\"$(CWMP_VERSION)\"