diff --git a/core/src/main/scala/org/broadinstitute/dsde/rawls/monitor/AvroUpsertMonitor.scala b/core/src/main/scala/org/broadinstitute/dsde/rawls/monitor/AvroUpsertMonitor.scala
index 576288caea..b8d93c8cda 100644
--- a/core/src/main/scala/org/broadinstitute/dsde/rawls/monitor/AvroUpsertMonitor.scala
+++ b/core/src/main/scala/org/broadinstitute/dsde/rawls/monitor/AvroUpsertMonitor.scala
@@ -368,7 +368,7 @@ class AvroUpsertMonitorActor(val pollInterval: FiniteDuration,
         case Some(workspace) => workspace
         case None =>
           throw new RawlsException(
-            s"Workspace $attributes.workspaceId.toString not found while importing entities"
+            s"Workspace ${attributes.workspaceId} not found while importing entities"
           )
       }
     }