diff --git a/Mk/bsd.licenses.db.mk b/Mk/bsd.licenses.db.mk
--- a/Mk/bsd.licenses.db.mk
+++ b/Mk/bsd.licenses.db.mk
@@ -38,7 +38,7 @@
 # _LICENSE_LIST_GROUPS	- List of defined license groups
 #
 
-_LICENSE_LIST= 	BSL CDDL CPAL-1.0 ClArtistic EPL GFDL GMGPL \
+_LICENSE_LIST= 	BSL BUSL-1.1 CDDL CPAL-1.0 ClArtistic EPL GFDL GMGPL \
 				ISCL MIT NCSA ODbL OFL10 OFL11 OWL OpenSSL PD PSFL PostgreSQL \
 				RUBY UNLICENSE WTFPL1 WTFPL ZLIB ZPL21
 
@@ -149,6 +149,9 @@
 _LICENSE_NAME_BSL=	Boost Software License
 _LICENSE_GROUPS_BSL=	FSF OSI COPYFREE
 
+_LICENSE_NAME_BUSL-1.1=	Business Source License
+_LICENSE_GROUPS_BUSL-1.1=	# empty
+
 _LICENSE_NAME_CC0-1.0=		Creative Commons Zero v1.0 Universal
 _LICENSE_GROUPS_CC0-1.0=	FSF GPL COPYFREE