diff --git a/background.html b/background.html
index fbc2e1eed..0fc15339c 100644
--- a/background.html
+++ b/background.html
@@ -216,7 +216,7 @@
   <script type='text/x-tmpl-mustache' id='identicon-svg'>
       <svg xmlns='http://www.w3.org/2000/svg' width='100' height='100'>
          <circle cx='50' cy='50' r='40' fill='{{ color }}' />
-          <text text-anchor='middle' fill='white' font-size='24px' x='50' y='50' baseline-shift='-8px'>
+          <text text-anchor='middle' fill='white' font-family='sans-serif' font-size='24px' x='50' y='50' baseline-shift='-8px'>
               {{ content }}
           </text>
       </svg>
diff --git a/test/index.html b/test/index.html
index 78c0420ba..1e4e173a6 100644
--- a/test/index.html
+++ b/test/index.html
@@ -200,7 +200,7 @@
   <script type='text/x-tmpl-mustache' id='identicon-svg'>
       <svg xmlns='http://www.w3.org/2000/svg' width='100' height='100'>
          <circle cx='50' cy='50' r='40' fill='{{ color }}' />
-          <text text-anchor='middle' fill='white' font-size='24px' x='50' y='50' baseline-shift='-8px'>
+          <text text-anchor='middle' fill='white' font-family='sans-serif' font-size='24px' x='50' y='50' baseline-shift='-8px'>
               {{ content }}
           </text>
       </svg>