diff --git a/dom/webidl/HTMLImageElement.webidl b/dom/webidl/HTMLImageElement.webidl
index 55f5a851b375..fe8c0ae7ec00 100644
--- a/dom/webidl/HTMLImageElement.webidl
+++ b/dom/webidl/HTMLImageElement.webidl
@@ -29,7 +29,7 @@ interface HTMLImageElement : HTMLElement {
            attribute DOMString? crossOrigin;
            [SetterThrows]
            attribute DOMString useMap;
-           [SetterThrows]
+           [SetterThrows, Pref="network.http.enablePerElementReferrer"]
            attribute DOMString referrer;
            [SetterThrows]
            attribute boolean isMap;