diff --git a/src/definitions/collections/message.less b/src/definitions/collections/message.less
index 6e3883de0..662ab1717 100755
--- a/src/definitions/collections/message.less
+++ b/src/definitions/collections/message.less
@@ -413,19 +413,19 @@
 ---------------*/
 
 .ui.small.message {
-  font-size: @small;
+  font-size: @relativeSmall;
 }
 .ui.message {
-  font-size: @medium;
+  font-size: @relativeMedium;
 }
 .ui.large.message {
-  font-size: @large;
+  font-size: @relativeLarge;
 }
 .ui.huge.message {
-  font-size: @huge;
+  font-size: @relativeHuge;
 }
 .ui.massive.message {
-  font-size: @massive;
+  font-size: @relativeMassive;
 }
 
 .loadUIOverrides();
\ No newline at end of file