diff --git a/src/sage/misc/sagedoc.py b/src/sage/misc/sagedoc.py
index 6bad826a88..f4d7b8651c 100644
--- a/src/sage/misc/sagedoc.py
+++ b/src/sage/misc/sagedoc.py
@@ -24,7 +24,7 @@ see :trac:`12849`::
     ....:     for line in fobj:
     ....:         if "#sage.symbolic.expression.Expression.numerical_approx" in line:
     ....:             print(line)
-    <code class="sig-name descname">numerical_approx</code><span class="sig-paren">(</span><em class="sig-param"><span class="n">prec</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">digits</span><span class="o">=</span><span class="default_value">None</span></em>, <em class="sig-param"><span class="n">algorithm</span><span class="o">=</span><span class="default_value">None</span></em><span class="sig-paren">)</span>...
+    <code class="sig-name descname"><span class="pre">numerical_approx</span></code><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">prec</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">digits</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">algorithm</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span>...
 
 Check that sphinx is not imported at Sage start-up::