diff --git a/less/grid.less b/less/grid.less
index a1ec1b2981..39f1049b64 100644
--- a/less/grid.less
+++ b/less/grid.less
@@ -114,7 +114,7 @@
 // Note that `.col-sm-12` doesn't get floated on purpose--there's no need since
 // it's full-width.
 
-@media (min-width: @screen-sm) {
+@media (min-width: @screen-sm-min) {
   .container {
     width: @container-sm;
   }
@@ -192,7 +192,7 @@
 // Note that `.col-md-12` doesn't get floated on purpose--there's no need since
 // it's full-width.
 
-@media (min-width: @screen-md) {
+@media (min-width: @screen-md-min) {
   .container {
     width: @container-md;
   }