diff --git a/compiler/semtypes.nim b/compiler/semtypes.nim
index c39fb47e1b..f4a9661690 100644
--- a/compiler/semtypes.nim
+++ b/compiler/semtypes.nim
@@ -768,7 +768,7 @@ proc addInheritedFieldsAux(c: PContext, check: var IntSet, pos: var int,
         addInheritedFieldsAux(c, check, pos, lastSon(n.sons[i]))
       else: internalError(c.config, n.info, "addInheritedFieldsAux(record case branch)")
   of nkRecList, nkRecWhen, nkElifBranch, nkElse:
-    for i in 0 ..< len(n):
+    for i in int(n.kind == nkElifBranch) ..< len(n):
       addInheritedFieldsAux(c, check, pos, n.sons[i])
   of nkSym:
     incl(check, n.sym.name.id)