diff --git a/build.sbt b/build.sbt
index 3fbb6733..7cd3ef1a 100644
--- a/build.sbt
+++ b/build.sbt
@@ -13,6 +13,7 @@ lazy val root =
         organization := "ch.epfl.lamp",
         version := "0.2.0-SNAPSHOT",
         libraryDependencies += "org.scala-lang" %% "scala2-library-cc-tasty-experimental" % "3.5.0-RC1-bin-SNAPSHOT",
+        // scalacOptions ++= Seq("-Ycc-log", "-Yprint-debug"),
         testFrameworks += new TestFramework("munit.Framework")
       )
     )
diff --git a/shared/src/main/scala/async/futures.scala b/shared/src/main/scala/async/futures.scala
index 12be6510..a622a4d8 100644
--- a/shared/src/main/scala/async/futures.scala
+++ b/shared/src/main/scala/async/futures.scala
@@ -146,7 +146,7 @@ object Future:
           )(using label)
           res.get
 
-    override def withGroup(group: CompletionGroup): Async^{ac} = FutureAsync(group)
+    override def withGroup(group: CompletionGroup): Async^ = FutureAsync(group)
 
   /** A future that is completed by evaluating `body` as a separate asynchronous operation in the given `scheduler`
     */