diff --git a/src/cc65/expr.c b/src/cc65/expr.c
index 422159c4b..44b0d17e8 100644
--- a/src/cc65/expr.c
+++ b/src/cc65/expr.c
@@ -3985,7 +3985,7 @@ static void hieQuest (ExprDesc* Expr)
         /* Parse second expression. Remember for later if it is a NULL pointer
         ** expression, then load it into the primary.
         */
-        ExprWithCheck (hie1, &Expr2);
+        ExprWithCheck (hie0, &Expr2);
         Expr2IsNULL = ED_IsNullPtr (&Expr2);
         if (!IsTypeVoid (Expr2.Type)    &&
             ED_YetToLoad (&Expr2)       &&