diff --git a/src/display/font_loader.js b/src/display/font_loader.js
index 9e6fa1e34..7d8f01a9f 100644
--- a/src/display/font_loader.js
+++ b/src/display/font_loader.js
@@ -457,6 +457,10 @@ class FontFaceObject {
     return this.#fontData.disableFontFace ?? false;
   }
 
+  set disableFontFace(value) {
+    shadow(this, "disableFontFace", !!value);
+  }
+
   get fontExtraProperties() {
     return this.#fontData.fontExtraProperties ?? false;
   }
@@ -501,6 +505,10 @@ class FontFaceObject {
     return this.#fontData.bbox;
   }
 
+  set bbox(bbox) {
+    shadow(this, "bbox", bbox);
+  }
+
   get fontMatrix() {
     return this.#fontData.fontMatrix;
   }
diff --git a/test/pdfs/issue20426.pdf.link b/test/pdfs/issue20426.pdf.link
new file mode 100644
index 000000000..6db965138
--- /dev/null
+++ b/test/pdfs/issue20426.pdf.link
@@ -0,0 +1 @@
+https://github.com/user-attachments/files/23383534/test.1.pdf
diff --git a/test/test_manifest.json b/test/test_manifest.json
index f864c2be9..da5707fd0 100644
--- a/test/test_manifest.json
+++ b/test/test_manifest.json
@@ -1948,6 +1948,14 @@
     "type": "eq",
     "forms": true
   },
+  {
+    "id": "issue20426",
+    "file": "pdfs/issue20426.pdf",
+    "md5": "b9a753df595f1dd30505a67c96373dd8",
+    "link": true,
+    "rounds": 1,
+    "type": "eq"
+  },
   {
     "id": "issue13845",
     "file": "pdfs/issue13845.pdf",