diff --git a/swank/rpc.lisp b/swank/rpc.lisp
index 90a9a7290..73b5b085b 100644
--- a/swank/rpc.lisp
+++ b/swank/rpc.lisp
@@ -8,7 +8,7 @@
 ;;; are disclaimed.
 ;;;
 
-(in-package swank/rpc)
+(in-package :swank/rpc)
 
 
 ;;;;; Input