diff --git a/_sass/custom/card.scss b/_sass/custom/card.scss
index c7e5793b7ed9cd1f1ea4720c262a88ac36fa9142..bfe59a5437911686594dfc0e3461a6bd831585ff 100644
--- a/_sass/custom/card.scss
+++ b/_sass/custom/card.scss
@@ -1,6 +1,6 @@
 @mixin abstract-card() {
   box-shadow: 0 1px 3px rgba(0, 0, 0, 0.07), 0 4px 14px rgba(0, 0, 0, 0.05);
-  margin: $sp-4 -$gutter-spacing-sm;
+  margin: $sp-4 (-$gutter-spacing-sm);
 
   @include mq(md) {
     border-radius: $border-radius;