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-rw-r--r--src/main/scala/firrtl/Visitor.scala2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/scala/firrtl/Visitor.scala b/src/main/scala/firrtl/Visitor.scala
index c2ca64d5..a026a495 100644
--- a/src/main/scala/firrtl/Visitor.scala
+++ b/src/main/scala/firrtl/Visitor.scala
@@ -179,7 +179,7 @@ class Visitor(val fullFilename: String) extends FIRRTLBaseVisitor[AST]
case _ =>
ctx.getChild(1).getText match {
case "." => new SubField(visitExp(ctx.exp(0)), ctx.id.getText, UnknownType)
- case "[" => if (ctx.IntLit != null)
+ case "[" => if (ctx.exp(1) == null)
new SubIndex(visitExp(ctx.exp(0)), string2BigInt(ctx.IntLit(0).getText), UnknownType)
else new SubAccess(visitExp(ctx.exp(0)), visitExp(ctx.exp(1)), UnknownType)
// Assume primop