diff --git a/src/structs.h b/src/structs.h
index 7e21f0f..6309211 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -4902,7 +4902,8 @@
     WT_MEMBER,
     WT_METHOD,		// object method
     WT_METHOD_ARG,	// object method argument type
-    WT_METHOD_RETURN	// object method return type
+    WT_METHOD_RETURN,	// object method return type
+    WT_CAST,		// type cast
 } wherekind_T;
 
 // Struct used to pass the location of a type check.  Used in error messages to