diff --git a/mediaapi/routing/download.go b/mediaapi/routing/download.go
index 4d1f539cc..3ce4ba395 100644
--- a/mediaapi/routing/download.go
+++ b/mediaapi/routing/download.go
@@ -309,7 +309,7 @@ func (r *downloadRequest) respondFromLocalFile(
 			}
 			w.Header().Set("Content-Disposition", fmt.Sprintf(
 				`inline; filename=utf-8"%s"`,
-				strconv.Quote(uploadName),
+				strings.ReplaceAll(uploadName, `"`, `\"`), // escape quote marks only, as per RFC6266
 			))
 		}
 	}