diff --git a/ivy/src/main/scala/sbt/internal/librarymanagement/ivyint/CachedResolutionResolveEngine.scala b/ivy/src/main/scala/sbt/internal/librarymanagement/ivyint/CachedResolutionResolveEngine.scala
index a7db35077..ed0a8a6b1 100644
--- a/ivy/src/main/scala/sbt/internal/librarymanagement/ivyint/CachedResolutionResolveEngine.scala
+++ b/ivy/src/main/scala/sbt/internal/librarymanagement/ivyint/CachedResolutionResolveEngine.scala
@@ -937,7 +937,7 @@ private[sbt] trait CachedResolutionResolveEngine extends ResolveEngine {
                 }).mkString("(", ", ", ")")
               )
           }
-        case None =>
+        case _ =>
           getSettings.getConflictManager(IvyModuleId.newInstance(organization, name)) match {
             case ncm: NoConflictManager => (conflicts, Vector(), ncm.toString)
             case _: StrictConflictManager =>