1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/scala/firrtl/passes/memlib/ResolveMemoryReference.scala b/src/main/scala/firrtl/passes/memlib/ResolveMemoryReference.scala
index 29200631..b5ff10c6 100644
--- a/src/main/scala/firrtl/passes/memlib/ResolveMemoryReference.scala
+++ b/src/main/scala/firrtl/passes/memlib/ResolveMemoryReference.scala
@@ -72,7 +72,7 @@ class ResolveMemoryReference extends Transform with DependencyAPIMigration {
     val noDedups = state.annotations.collect {
       case NoDedupMemAnnotation(ComponentName(cn, ModuleName(mn, _))) => mn -> cn
     }
-    val noDedupMap: Map[String, Set[String]] = noDedups.groupBy(_._1).mapValues(_.map(_._2).toSet)
+    val noDedupMap: Map[String, Set[String]] = noDedups.groupBy(_._1).mapValues(_.map(_._2).toSet).toMap
     state.copy(circuit = run(state.circuit, noDedupMap))
   }
 }