diff --git a/merge_requests.go b/merge_requests.go
index 1df07225f..a3dd274be 100644
--- a/merge_requests.go
+++ b/merge_requests.go
@@ -510,7 +510,7 @@ func (s *MergeRequestsService) ListMergeRequesDiffs(pid interface{}, mergeReques
 		return nil, nil, err
 	}
 
-	u := fmt.Sprintf("/projects/%s/merge_requests/%d/diffs", PathEscape(project), mergeRequest)
+	u := fmt.Sprintf("projects/%s/merge_requests/%d/diffs", PathEscape(project), mergeRequest)
 
 	req, err := s.client.NewRequest(http.MethodGet, u, opt, options)
 	if err != nil {