diff --git a/python_docs_theme/static/pydoctheme.css b/python_docs_theme/static/pydoctheme.css
index 239d2cb..8651f10 100644
--- a/python_docs_theme/static/pydoctheme.css
+++ b/python_docs_theme/static/pydoctheme.css
@@ -136,7 +136,7 @@ div.body a:hover {
 }
 
 tt, code, pre {
-    font-family: monospace, sans-serif;
+    font-family: "monospace", sans-serif;
     font-size: 96.5%;
 }
 
@@ -208,7 +208,7 @@ div.footer a:hover {
 }
 
 dl > dt span ~ em {
-    font-family: monospace, sans-serif;
+    font-family: "monospace", sans-serif;
 }
 
 .toctree-wrapper ul {