--- a/package-data-list.lisp-expr
+++ b/package-data-list.lisp-expr
@@ -851,6 +851,9 @@
 
                ;; Stack allocation without any questions asked
                "TRULY-DYNAMIC-EXTENT"
+
+               ;; Like WITH-LOCKED-HASH-TABLE, but disabled interrupts
+               "WITH-LOCKED-SYSTEM-TABLE"
 
                ;; generic set implementation
                "ADD-TO-XSET"