diff --git a/src/lib/substituteBreakpointAtRules.js b/src/lib/substituteBreakpointAtRules.js
index b6cbb6e6f..ec2f63a04 100644
--- a/src/lib/substituteBreakpointAtRules.js
+++ b/src/lib/substituteBreakpointAtRules.js
@@ -15,7 +15,7 @@ export default function(options) {
       }
 
       atRule.name = 'media'
-      atRule.params = buildMediaQuery(breakpoint)
+      atRule.params = buildMediaQuery(options.breakpoints[breakpoint])
     })
   }
 }