1 files changed, 1 insertions, 1 deletions

diff --git a/src/_mixins.scss b/src/_mixins.scss
index 506b8ee..b1dda37 100644
--- a/src/_mixins.scss
+++ b/src/_mixins.scss
@@ -12,7 +12,7 @@
 
 @mixin heading-strong($size) {
     color:     fn.foreign-color(--heading, --strong);
-    font-size: $size;
+    font-size: fn.global-dim(join(--heading, $size));
 }
 
 @mixin heading-medium($size) {