diff --git a/guacamole/src/main/webapp/app/osk/styles/osk.css b/guacamole/src/main/webapp/app/osk/styles/osk.css
index 0681c6b60..843442288 100644
--- a/guacamole/src/main/webapp/app/osk/styles/osk.css
+++ b/guacamole/src/main/webapp/app/osk/styles/osk.css
@@ -51,8 +51,7 @@
 
 .guac-keyboard .guac-keyboard-cap {
     color: white;
-    font-family: sans-serif;
-    font-size: 50%;
+    font-size: 45%;
     font-weight: lighter;
     text-align: center;
     white-space: pre;