diff --git a/src/main/scala/net/kemitix/s3thorp/S3MetaDataEnricher.scala b/src/main/scala/net/kemitix/s3thorp/S3MetaDataEnricher.scala
index 6b9d0da..5871ce5 100644
--- a/src/main/scala/net/kemitix/s3thorp/S3MetaDataEnricher.scala
+++ b/src/main/scala/net/kemitix/s3thorp/S3MetaDataEnricher.scala
@@ -8,7 +8,10 @@ import cats.effect.IO
 trait S3MetaDataEnricher extends S3Client {
 
   def generateKey(c: Config)(file: File): String = {
-    s"${c.prefix}/${c.source.toPath.relativize(file.toPath)}"
+    val otherPath = file.toPath.toAbsolutePath
+    val sourcePath = c.source.toPath
+    val relativePath = sourcePath.relativize(otherPath)
+    s"${c.prefix}/$relativePath"
   }
 
   def enrichWithS3MetaData(c: Config): File => Stream[IO, Either[File, S3MetaData]] = {
diff --git a/src/test/scala/net/kemitix/s3thorp/S3MetaDataEnricherSuite.scala b/src/test/scala/net/kemitix/s3thorp/S3MetaDataEnricherSuite.scala
index e33c6d7..a614ef4 100644
--- a/src/test/scala/net/kemitix/s3thorp/S3MetaDataEnricherSuite.scala
+++ b/src/test/scala/net/kemitix/s3thorp/S3MetaDataEnricherSuite.scala
@@ -2,17 +2,20 @@ package net.kemitix.s3thorp
 
 import java.io.File
 import java.nio.file.Paths
+import java.time.Instant
 
+import cats.effect.IO
 import org.scalatest.FunSpec
 
 class S3MetaDataEnricherSuite extends FunSpec {
 
+  private val sourcePath = "/root/from/here/"
+  private val source = Paths.get(sourcePath).toFile
+  private val prefix = "prefix"
+  private val config = Config("bucket", prefix, source)
+
   new S3MetaDataEnricher {
     describe("key generator") {
-      val path = "/root/from/here"
-      val source = Paths.get(path).toFile
-      val prefix = "prefix"
-      val config = Config("bucket", prefix, source)
       val subject = generateKey(config)_
 
       def resolve(subdir: String): File = {
@@ -35,4 +38,22 @@ class S3MetaDataEnricherSuite extends FunSpec {
     }
     override def objectHead(bucket: String, key: String) = ???
   }
+
+  describe("enrich with metadata") {
+    describe("when remote exists") {
+      val hash = "hash"
+      val lastModified = Instant.now()
+      new S3MetaDataEnricher {
+        override def objectHead(bucket: String, key: String) = IO(Some((hash, lastModified)))
+        it("returns metadata") {
+          val local = "localFile"
+          val localFile = new File(sourcePath + local)
+          val expectedMetadata = S3MetaData(localFile, s"$prefix/$local", hash, lastModified)
+
+          val result: Either[File, S3MetaData] =
+            enrichWithS3MetaData(config)(localFile).compile.toList.unsafeRunSync().head
+          assertResult(Right(expectedMetadata))(result)
+        }
+      }
+    }
 }