Fix Log2

1 files changed, 1 insertions, 1 deletions

diff --git a/src/main/scala/chisel3/util/CircuitMath.scala b/src/main/scala/chisel3/util/CircuitMath.scala
index 83e5feb1..a422b5fe 100644
--- a/src/main/scala/chisel3/util/CircuitMath.scala
+++ b/src/main/scala/chisel3/util/CircuitMath.scala
@@ -18,7 +18,7 @@ object Log2 {
     } else if (width == 2) {
       x(1)
     } else if (width <= divideAndConquerThreshold) {
-      Mux(x(width-1), UInt((width-1).W), apply(x, width-1))
+      Mux(x(width-1), (width-1).asUInt, apply(x, width-1))
     } else {
       val mid = 1 << (log2Ceil(width) - 1)
       val hi = x(width-1, mid)