diff --git a/basis/cocoa/messages/messages.factor b/basis/cocoa/messages/messages.factor
index 3023161be7..b03bf83080 100644
--- a/basis/cocoa/messages/messages.factor
+++ b/basis/cocoa/messages/messages.factor
@@ -126,6 +126,7 @@ H{
     { "@" id }
     { "#" Class }
     { ":" SEL }
+    { "(" c:void* }
 }
 cell {
     { 4 [ H{