diff --git a/admin/api/exercice.go b/admin/api/exercice.go
index 16ea7fc6..f93e9c18 100644
--- a/admin/api/exercice.go
+++ b/admin/api/exercice.go
@@ -131,7 +131,7 @@ func createExerciceHint(exercice fic.Exercice, body []byte) (interface{}, error)
 	if len(uh.Content) != 0 {
 		return exercice.AddHint(uh.Title, uh.Content, uh.Cost)
 	} else if len(uh.URI) != 0 {
-		return sync.ImportFile(uh.URI,
+		return sync.ImportFile(sync.GlobalImporter, uh.URI,
 			func(filePath string, origin string) (interface{}, error) {
 				return exercice.AddHint(uh.Title, "$FILES" + strings.TrimPrefix(filePath, fic.FilesDir), uh.Cost)
 			})
@@ -221,7 +221,7 @@ func createExerciceFile(exercice fic.Exercice, body []byte) (interface{}, error)
 		return nil, err
 	}
 
-	return sync.ImportFile(uf.URI,
+	return sync.ImportFile(sync.GlobalImporter, uf.URI,
 		func(filePath string, origin string) (interface{}, error) {
 			if digest, err := hex.DecodeString(uf.Digest); err != nil {
 				return nil, err
diff --git a/admin/sync/file.go b/admin/sync/file.go
index 3e5f6d54..46776b92 100644
--- a/admin/sync/file.go
+++ b/admin/sync/file.go
@@ -70,9 +70,13 @@ func getFileContent(i Importer, URI string) (string, error) {
 	}
 }
 
-func ImportFile(URI string, next func(string, string) (interface{}, error)) (interface{}, error) {
+func getDestinationFilePath(URI string) string {
 	hash := blake2b.Sum512([]byte(URI))
-	dest := path.Join(fic.FilesDir, strings.ToLower(base32.StdEncoding.WithPadding(base32.NoPadding).EncodeToString(hash[:])), path.Base(URI))
+	return path.Join(fic.FilesDir, strings.ToLower(base32.StdEncoding.WithPadding(base32.NoPadding).EncodeToString(hash[:])), path.Base(URI))
+}
+
+func ImportFile(i Importer, URI string, next func(string, string) (interface{}, error)) (interface{}, error) {
+	dest := getDestinationFilePath(URI)
 
 	// If the present file is still valide, don't erase it
 	if _, err := os.Stat(dest); !os.IsNotExist(err) {
@@ -100,7 +104,7 @@ func ImportFile(URI string, next func(string, string) (interface{}, error)) (int
 	} else {
 		defer fdto.Close()
 		writer := bufio.NewWriter(fdto)
-		if err := getFile(GlobalImporter, URI, writer); err != nil {
+		if err := getFile(i, URI, writer); err != nil {
 			os.Remove(dest)
 			return nil, err
 		}