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-rw-r--r--compiler/semtypes.nim1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/semtypes.nim b/compiler/semtypes.nim
index a529e80c0..9d00c06ca 100644
--- a/compiler/semtypes.nim
+++ b/compiler/semtypes.nim
@@ -393,6 +393,7 @@ proc semTuple(c: PContext, n: PNode, prev: PType): PType =
         addSon(result.n, newSymNode(field))
         addSonSkipIntLit(result, typ)
       if gCmd == cmdPretty: styleCheckDef(a.sons[j].info, field)
+  if result.n.len == 0: result.n = nil
 
 proc semIdentVis(c: PContext, kind: TSymKind, n: PNode,
                  allowed: TSymFlags): PSym =