diff -urp zsh-head/Src/Zle/zleparameter.c zsh-bindkey-crash/Src/Zle/zleparameter.c
--- zsh-head/Src/Zle/zleparameter.c	Tue Mar  7 13:31:44 2006
+++ zsh-bindkey-crash/Src/Zle/zleparameter.c	Mon May 21 18:52:20 2007
@@ -75,6 +75,8 @@ createspecialhash(char *name, GetNodeFun
 static char *
 widgetstr(Widget w)
 {
+    if (!w)
+	return dupstring("undefined");
     if (w->flags & WIDGET_INT)
 	return dupstring("builtin");
     if (w->flags & WIDGET_NCOMP) {
@@ -127,6 +129,8 @@ scanpmwidgets(UNUSED(HashTable ht), Scan
 
     for (i = 0; i < thingytab->hsize; i++)
 	for (hn = thingytab->nodes[i]; hn; hn = hn->next) {
+	    if (!((Thingy) hn)->widget)
+		continue;
 	    pm.node.nam = hn->nam;
 	    if (func != scancountparams &&
 		((flags & (SCANPM_WANTVALS|SCANPM_MATCHVAL)) ||