diff --git a/src/display/svg.js b/src/display/svg.js
index 4631b5d4f..3aa4cf083 100644
--- a/src/display/svg.js
+++ b/src/display/svg.js
@@ -1090,6 +1090,9 @@ if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
       rect.setAttributeNS(null, "width", x1 - x0);
       rect.setAttributeNS(null, "height", y1 - y0);
       rect.setAttributeNS(null, "fill", this._makeShadingPattern(args));
+      if (this.current.fillAlpha < 1) {
+        rect.setAttributeNS(null, "fill-opacity", this.current.fillAlpha);
+      }
       this._ensureTransformGroup().appendChild(rect);
     }