diff --git a/package/system/usign/Makefile b/package/system/usign/Makefile
index ce40e6861e..713bb9349f 100644
--- a/package/system/usign/Makefile
+++ b/package/system/usign/Makefile
@@ -10,6 +10,7 @@ PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE_VERSION:=cf8dcdb8a4e874c77f3e9a8e9b643e8c17b19131
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
 CMAKE_INSTALL:=1
+PKG_CHECK_FORMAT_SECURITY:=1
 PKG_USE_MIPS16:=0
 
 PKG_LICENSE:=ISC