diff --git a/scss/_buttons.scss b/scss/_buttons.scss
index 73755280fd..2798577162 100644
--- a/scss/_buttons.scss
+++ b/scss/_buttons.scss
@@ -160,7 +160,7 @@ fieldset[disabled] a.btn {
 
 // Vertically space out multiple block buttons
 .btn-block + .btn-block {
-  margin-top: 5px;
+  margin-top: $btn-block-spacing-y;
 }
 
 // Specificity overrides
diff --git a/scss/_variables.scss b/scss/_variables.scss
index a29d0399d9..41bc7dbb4e 100644
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -275,6 +275,8 @@ $btn-padding-y-sm:               .25rem !default;
 $btn-padding-x-lg:               1.25rem !default;
 $btn-padding-y-lg:               .75rem !default;
 
+$btn-block-spacing-y:            5px !default;
+
 // Allows for customizing button radius independently from global border radius
 $btn-border-radius:              $border-radius !default;
 $btn-border-radius-lg:           $border-radius-lg !default;