diff --git a/core/src/main/scala/coursier/package.scala b/core/src/main/scala/coursier/package.scala
index b0caddc55..c50456072 100644
--- a/core/src/main/scala/coursier/package.scala
+++ b/core/src/main/scala/coursier/package.scala
@@ -66,7 +66,7 @@ package object coursier {
     def process: ResolutionProcess = ResolutionProcess(underlying)
   }
 
-  def fetch(repositories: Seq[core.Repository]): ResolutionProcess.Fetch[Task] = {
+  implicit def fetch(repositories: Seq[core.Repository]): ResolutionProcess.Fetch[Task] = {
     modVers =>
       Task.gatherUnordered(
         modVers