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-rw-r--r--chiselFrontend/src/main/scala/chisel3/internal/Builder.scala2
1 files changed, 1 insertions, 1 deletions
diff --git a/chiselFrontend/src/main/scala/chisel3/internal/Builder.scala b/chiselFrontend/src/main/scala/chisel3/internal/Builder.scala
index b5f617f0..c119315d 100644
--- a/chiselFrontend/src/main/scala/chisel3/internal/Builder.scala
+++ b/chiselFrontend/src/main/scala/chisel3/internal/Builder.scala
@@ -18,7 +18,7 @@ private[chisel3] class Namespace(keywords: Set[String]) {
names(keyword) = 1
private def rename(n: String): String = {
- val index = names.getOrElse(n, 1L)
+ val index = names(n)
val tryName = s"${n}_${index}"
names(n) = index + 1
if (this contains tryName) rename(n) else tryName