diff --git a/package/libesmtp/libesmtp.mk b/package/libesmtp/libesmtp.mk
index 9c336793a4..ad896fc943 100644
--- a/package/libesmtp/libesmtp.mk
+++ b/package/libesmtp/libesmtp.mk
@@ -12,5 +12,6 @@ LIBESMTP_CONFIG_SCRIPTS = libesmtp-config
 LIBESMTP_DEPENDENCIES = $(if $(BR2_PACKAGE_OPENSSL),openssl)
 LIBESMTP_LICENSE = GPL-2.0+ (examples), LGPL-2.1+ (library)
 LIBESMTP_LICENSE_FILES = COPYING COPYING.LIB
+LIBESMTP_CPE_ID_VALID = YES
 
 $(eval $(autotools-package))