diff --git a/src/display/text_layer.js b/src/display/text_layer.js
index 2f72b712ef71f5..11fb7200045639 100644
--- a/src/display/text_layer.js
+++ b/src/display/text_layer.js
@@ -300,9 +300,16 @@ class TextLayer {
       angle += Math.PI / 2;
     }
 
-    const fontFamily =
+    let fontFamily =
       (this.#fontInspectorEnabled && style.fontSubstitution) ||
       style.fontFamily;
+
+    // Workaround for bug 1922063.
+    if (fontFamily === "sans-serif") {
+      fontFamily = "Calibri, sans serif";
+    } else if (fontFamily === "monospace") {
+      fontFamily = "Lucida Console, monospace";
+    }
     const fontHeight = Math.hypot(tx[2], tx[3]);
     const fontAscent =
       fontHeight * TextLayer.#getAscent(fontFamily, this.#lang);