diff --git a/backend/templates/diff.html b/backend/templates/diff.html
index 9c9232db..044d5e25 100644
--- a/backend/templates/diff.html
+++ b/backend/templates/diff.html
@@ -8,9 +8,9 @@
         <fieldset>
 
             <label for="diffWords" class="pure-checkbox">
-                <input type="radio" name="diff_type" id="diffWords" value="diffWords" checked=""/> Words</label>
+                <input type="radio" name="diff_type" id="diffWords" value="diffWords" /> Words</label>
             <label for="diffLines" class="pure-checkbox">
-                <input type="radio" name="diff_type" id="diffLines" value="diffLines"/> Lines</label>
+                <input type="radio" name="diff_type" id="diffLines" value="diffLines" checked=""/> Lines</label>
 
             <label for="diffChars" class="pure-checkbox">
                 <input type="radio" name="diff_type" id="diffChars" value="diffChars"/> Chars</label>