diff --git a/lib/src/flutter_bootstrap.dart b/lib/src/flutter_bootstrap.dart
index 811c972..aec841e 100644
--- a/lib/src/flutter_bootstrap.dart
+++ b/lib/src/flutter_bootstrap.dart
@@ -56,7 +56,7 @@ String bootstrapPrefixBasedOnWidth(double width) {
     return "lg";
   }
 
-  if (width > 768) {
+  if (width > 767) {
     return "md";
   }