diff --git a/package/prboom/prboom.mk b/package/prboom/prboom.mk
index 1da08ceb98..55973d6dc2 100644
--- a/package/prboom/prboom.mk
+++ b/package/prboom/prboom.mk
@@ -8,6 +8,8 @@ PRBOOM_VERSION = 2.5.0
 PRBOOM_SITE = http://downloads.sourceforge.net/project/prboom/prboom%20stable/$(PRBOOM_VERSION)
 PRBOOM_CONF_ENV = ac_cv_type_uid_t=yes
 PRBOOM_DEPENDENCIES = sdl sdl_net sdl_mixer
+PRBOOM_LICENSE = GPLv2+
+PRBOOM_LICENSE_FILES = COPYING
 
 ifeq ($(BR2_PACKAGE_LIBPNG),y)
 PRBOOM_DEPENDENCIES += libpng