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Co-authored-by: Jamie Thompson <[email protected]>

Author: nicolasstucki

compiler/src/dotty/tools/dotc/typer/Synthesizer.scala

@@ -364,7 +364,7 @@ class Synthesizer(typer: Typer)(using @constructorOnly c: Context):
             tp.tupleElementTypes match
               case Some(types) =>
                 // avoid type aliases for tuples
-                Right(MirrorSource.GenericTuple(tp.tupleElementTypes.get))
+                Right(MirrorSource.GenericTuple(types))
               case _ => reduce(tp.underlying)
           case _ => reduce(tp.underlying)
       case tp @ AndType(l, r) =>