diff --git a/_sass/minimal-mistakes/_forms.scss b/_sass/minimal-mistakes/_forms.scss
index f9372166..146b3799 100644
--- a/_sass/minimal-mistakes/_forms.scss
+++ b/_sass/minimal-mistakes/_forms.scss
@@ -25,7 +25,7 @@ form {
   }
 
   p {
-    margin-bottom: 5px / 2;
+    margin-bottom: (5px / 2);
   }
 
   ul {