diff --git a/x-pack/plugins/apm/common/agent_name.ts b/x-pack/plugins/apm/common/agent_name.ts
index 247b07b5e71bb..8e40b088dff26 100644
--- a/x-pack/plugins/apm/common/agent_name.ts
+++ b/x-pack/plugins/apm/common/agent_name.ts
@@ -35,6 +35,7 @@ export const AGENT_NAMES: AgentName[] = [
   'java',
   'js-base',
   'nodejs',
+  'php',
   'python',
   'ruby',
   'rum-js',