diff --git a/panda/src/express/config_express.cxx b/panda/src/express/config_express.cxx
index 3edfb8a707..9bb20179a9 100644
--- a/panda/src/express/config_express.cxx
+++ b/panda/src/express/config_express.cxx
@@ -38,8 +38,6 @@ ConfigureDef(config_express);
 NotifyCategoryDef(express, "");
 NotifyCategoryDef(thread, "");
 
-extern void init_system_type_handles();
-
 ConfigureFn(config_express) {
   init_libexpress();
 }