diff --git a/ChangeLog b/ChangeLog
index 52491f4b5..0b7d4dad1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2023-02-21  Peter Stephenson  <p.stephenson@samsung.com>
+
+	* 51466: Src/params.c: fix access to autoloaded parameter.
+
 2023-02-20  Bart Schaefer  <schaefer@zsh.org>
 
 	* 51431: Src/builtin.c: "typeset -p" shouldn't change parameter flags
diff --git a/Src/params.c b/Src/params.c
index e940d7995..90302b1b0 100644
--- a/Src/params.c
+++ b/Src/params.c
@@ -538,7 +538,7 @@ getparamnode(HashTable ht, const char *nam)
     }
 
     if (hn && ht == realparamtab)
-	hn = resolve_nameref(pm, NULL);
+	hn = resolve_nameref((Param)hn, NULL);
     return hn;
 }