diff --git a/package/grpc/grpc.mk b/package/grpc/grpc.mk
index 1bb4bd2b98..110e5e640a 100644
--- a/package/grpc/grpc.mk
+++ b/package/grpc/grpc.mk
@@ -6,7 +6,7 @@
 
 GRPC_VERSION = 1.41.0
 GRPC_SITE = $(call github,grpc,grpc,v$(GRPC_VERSION))
-GRPC_LICENSE = Apache-2.0
+GRPC_LICENSE = Apache-2.0, BSD-3-Clause (third_party code), MPL-2.0 (etc/roots.pem)
 GRPC_LICENSE_FILES = LICENSE
 GRPC_CPE_ID_VENDOR = grpc