diff --git a/scss/_modal.scss b/scss/_modal.scss
index 575b6369ef..83a1335319 100644
--- a/scss/_modal.scss
+++ b/scss/_modal.scss
@@ -48,7 +48,7 @@
   position: relative;
   background-color: $modal-content-bg;
   background-clip: padding-box;
-  border: 1px solid $modal-content-border-color;
+  border: $modal-content-border-width solid $modal-content-border-color;
   @include border-radius($border-radius-lg);
   @include box-shadow($modal-content-xs-box-shadow);
   // Remove focus outline from opened modal
diff --git a/scss/_variables.scss b/scss/_variables.scss
index 474dabf367..e28b46711d 100644
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -634,6 +634,7 @@ $modal-title-line-height:     $line-height-base !default;
 
 $modal-content-bg:               #fff !default;
 $modal-content-border-color:     rgba(0,0,0,.2) !default;
+$modal-content-border-width:     $border-width !default;
 $modal-content-xs-box-shadow:    0 3px 9px rgba(0,0,0,.5) !default;
 $modal-content-sm-up-box-shadow: 0 5px 15px rgba(0,0,0,.5) !default;
 
@@ -641,7 +642,7 @@ $modal-backdrop-bg:           #000 !default;
 $modal-backdrop-opacity:      .5 !default;
 $modal-header-border-color:   #e5e5e5 !default;
 $modal-footer-border-color:   $modal-header-border-color !default;
-$modal-header-border-width:   $border-width !default;
+$modal-header-border-width:   $modal-content-border-width !default;
 $modal-footer-border-width:   $modal-header-border-width !default;
 
 $modal-lg:                    900px !default;