diff --git a/libs/libesmtp/Makefile b/libs/libesmtp/Makefile
index 7accb40e94..577ac6bd49 100644
--- a/libs/libesmtp/Makefile
+++ b/libs/libesmtp/Makefile
@@ -14,6 +14,7 @@ PKG_RELEASE:=3
 PKG_MAINTAINER:=Othmar Truniger <github@truniger.ch>
 PKG_LICENSE:=LGPL-2.0-or-later
 PKG_LICENSE_FILES:=COPYING
+PKG_CPE_ID:=cpe:/a:libesmtp_project:libesmtp
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/libesmtp/libESMTP/tar.gz/v$(PKG_VERSION)?