diff --git a/index.html b/index.html
index edcc53c..17610cc 100644
--- a/index.html
+++ b/index.html
@@ -90,7 +90,7 @@
         <sm-form>
             <div id="input_wrapper">
                 <sm-input id="private_key_input" class="password-field flex-1" placeholder="FLO/BTC private key"
-                    data-private-key animate required>
+                    type="password" data-private-key animate required>
                     <svg class="icon" slot="icon" xmlns="http://www.w3.org/2000/svg" enable-background="new 0 0 24 24"
                         height="24px" viewBox="0 0 24 24" width="24px" fill="#000000">
                         <g>