diff --git a/src/eat.c b/src/eat.c
index 2bb8be744..6ec3014b0 100644
--- a/src/eat.c
+++ b/src/eat.c
@@ -3546,7 +3546,7 @@ Popeye(int threat)
                           && (mndx == PM_LIZARD || acidic(&mons[mndx])));
     /* polymorph into a fiery monster */
     case SLIMED:
-        return (boolean) (mndx == PM_CHAMELEON);
+        return (boolean) polyfodder(otin);
     /* no tins can cure these (yet?) */
     case SICK:
     case VOMITING: