diff --git a/helpers/app_helpers.rb b/helpers/app_helpers.rb
index bf81652..045ce33 100644
--- a/helpers/app_helpers.rb
+++ b/helpers/app_helpers.rb
@@ -1,5 +1,3 @@
-require 'bip_mnemonic'
-
 module Helpers
   module App
     def version
@@ -793,10 +791,7 @@ def prepare_mnemonics(mn)
     end
 
     def mnemonic_sentence wc
-      mtrx = {'9' => 96, '12' => 128, '15' => 164, '18' => 196, '21' => 224, '24' => 256}
-      wc = wc.to_s
-      raise "Non-supported no of words #{wc}! Supported are #{mtrx.keys}" unless mtrx.keys.include?(wc)
-      BipMnemonic.to_mnemonic(bits: mtrx[wc], language: 'english')
+      @cw.utils.mnemonic_sentence(wc.to_i).join(' ')
     end
 
   end
diff --git a/views/form_gen_mnemonics.erb b/views/form_gen_mnemonics.erb
index 40adddf..8567a43 100644
--- a/views/form_gen_mnemonics.erb
+++ b/views/form_gen_mnemonics.erb
@@ -6,10 +6,10 @@
           <select class="custom-select mr-sm-2" name="words_count">
             <option value="9" <%= "selected" if words_count == '9' %>>9</option>
             <option value="12" <%= "selected" if words_count == '12' %>>12</option>
-            <option value="15" <%= "selected" if words_count == '15' || !words_count %>>15</option>
+            <option value="15" <%= "selected" if words_count == '15' %>>15</option>
             <option value="18" <%= "selected" if words_count == '18' %>>18</option>
             <option value="21" <%= "selected" if words_count == '21' %>>21</option>
-            <option value="24" <%= "selected" if words_count == '24' %>>24</option>
+            <option value="24" <%= "selected" if words_count == '24'|| !words_count %>>24</option>
           </select>
         </div>
         <div class="col-auto my-1">