diff --git a/htdocs/css/openwebrx.css b/htdocs/css/openwebrx.css
index b96371d..93b26db 100644
--- a/htdocs/css/openwebrx.css
+++ b/htdocs/css/openwebrx.css
@@ -322,7 +322,9 @@ input[type=range]:disabled {
 
 @font-face {
     font-family: 'roboto-mono';
-    src: url('../fonts/RobotoMono-Regular.ttf');
+    src: url('../fonts/RobotoMono-Regular.woff2') format('woff2'),
+         url('../fonts/RobotoMono-Regular.woff') format('woff'),
+         url('../fonts/RobotoMono-Regular.ttf') format('truetype');
     font-weight: normal;
     font-style: normal;
 }
diff --git a/htdocs/fonts/RobotoMono-Regular.ttf b/htdocs/fonts/RobotoMono-Regular.ttf
index 5919b5d..7c4ce36 100644
Binary files a/htdocs/fonts/RobotoMono-Regular.ttf and b/htdocs/fonts/RobotoMono-Regular.ttf differ
diff --git a/htdocs/fonts/RobotoMono-Regular.woff b/htdocs/fonts/RobotoMono-Regular.woff
new file mode 100644
index 0000000..1b805ea
Binary files /dev/null and b/htdocs/fonts/RobotoMono-Regular.woff differ
diff --git a/htdocs/fonts/RobotoMono-Regular.woff2 b/htdocs/fonts/RobotoMono-Regular.woff2
new file mode 100644
index 0000000..dab2585
Binary files /dev/null and b/htdocs/fonts/RobotoMono-Regular.woff2 differ