diff --git a/src/themes/default/elements/header.variables b/src/themes/default/elements/header.variables
index 7aa56d8f2..fcd304dda 100644
--- a/src/themes/default/elements/header.variables
+++ b/src/themes/default/elements/header.variables
@@ -40,7 +40,7 @@
 @imageAlignment: middle;
 
 /* Label */
-@labelSize: @medium;
+@labelSize: '';
 @labelDistance: 0.5rem;
 @labelVerticalAlign: middle;