diff --git a/docs/en/setup/service-agent/php-agent/README.md b/docs/en/setup/service-agent/php-agent/README.md
index 05c8e78..5bca098 100644
--- a/docs/en/setup/service-agent/php-agent/README.md
+++ b/docs/en/setup/service-agent/php-agent/README.md
@@ -18,7 +18,7 @@
 ### For Debian-base OS
 
 ```shell
-sudo apt install gcc make llvm-13-dev libclang-13-dev protobuf-c-compiler
+sudo apt install gcc make llvm-13-dev libclang-13-dev protobuf-c-compiler protobuf-compiler
 ```
 
 ### For Alpine Linux