diff --git a/pages/common/protoc.md b/pages/common/protoc.md
index 441e08516f..c27ac02db4 100644
--- a/pages/common/protoc.md
+++ b/pages/common/protoc.md
@@ -1,6 +1,7 @@
 # protoc
 
 > Parse Google Protobuf `.proto` files and generate output in the specified language.
+> More information: <https://developers.google.com/protocol-buffers>.
 
 - Generate Python code from a `.proto` file: