diff --git a/src/boot/natives.reb b/src/boot/natives.reb
index 94d50229c5..6714acb418 100644
--- a/src/boot/natives.reb
+++ b/src/boot/natives.reb
@@ -595,7 +595,7 @@ invalid-utf?: native [
 
 value?: native [
 	{Returns TRUE if the word has a value.}
-	value
+	value [word!]
 ]
 
 to-value: native [