diff --git a/build/css/main.css b/build/css/main.css
index cfa63288..ec8c3cab 100644
--- a/build/css/main.css
+++ b/build/css/main.css
@@ -5993,3 +5993,6 @@ body {
   margin-bottom: -40px;
   color: #85898c;
   font-size: 12px; }
+
+.tiny {
+  font-size: 10px; }
diff --git a/lib/index.html b/lib/index.html
index e16abcb3..b28190e5 100644
--- a/lib/index.html
+++ b/lib/index.html
@@ -32,6 +32,8 @@
                 <div ng-show="app.selection.hasImage()">
                   <span ng-bind="app.selection.getImage() | basename"></span>
                 </div>
+
+                <p class="step-footer tiny">*supported files: .img, .iso</p>
               </div>
             </div>
           </div>
diff --git a/lib/scss/main.scss b/lib/scss/main.scss
index 7caec0a9..74ec48f0 100644
--- a/lib/scss/main.scss
+++ b/lib/scss/main.scss
@@ -151,3 +151,7 @@ body {
   color: lighten($color-disabled, 5%);
   font-size: 12px;
 }
+
+.tiny {
+  font-size: 10px;
+}
diff --git a/screenshot.png b/screenshot.png
index e392e5d2..9d6eb5e1 100644
Binary files a/screenshot.png and b/screenshot.png differ