diff --git a/basis/cocoa/messages/messages.factor b/basis/cocoa/messages/messages.factor
index 029b3f46e6..4b2c2f2a33 100644
--- a/basis/cocoa/messages/messages.factor
+++ b/basis/cocoa/messages/messages.factor
@@ -109,7 +109,7 @@ H{
     { "d" c:double }
     { "B" c:bool }
     { "v" c:void }
-    { "*" c:c-string }
+    { "*" c:void* }
     { "?" unknown_type }
     { "@" id }
     { "#" Class }