diff --git a/docs/material-design/buttons.md b/docs/material-design/buttons.md
index d4e03607..01ca2e3a 100644
--- a/docs/material-design/buttons.md
+++ b/docs/material-design/buttons.md
@@ -85,6 +85,9 @@ group: material-design
 <button type="button" class="btn btn-danger btn-fab">
   <i class="material-icons">grade</i>
 </button>
+<button type="button" class="btn btn-danger btn-fab active">
+  <i class="material-icons">grade</i>
+</button>
 {% endexample %}
 
 ### Disabled
@@ -132,6 +135,9 @@ group: material-design
   <button type="button" class="btn btn-danger btn-fab">
     <i class="material-icons">grade</i>
   </button>
+  <button type="button" class="btn btn-danger btn-fab active">
+    <i class="material-icons">grade</i>
+  </button>
 </fieldset>
 {% endexample %}
 
diff --git a/scss/_buttons.scss b/scss/_buttons.scss
index a171bc00..b278ae3c 100644
--- a/scss/_buttons.scss
+++ b/scss/_buttons.scss
@@ -92,7 +92,7 @@
       border-radius: 50%;
     }
 
-    &.btn-fab-mini,
+    &.btn-fab-sm,
     .btn-group-sm & {
       width: $mdb-btn-fab-size-mini;
       min-width: $mdb-btn-fab-size-mini;