diff --git a/src/index.html b/src/index.html
index 32b17b4..c42e2f7 100644
--- a/src/index.html
+++ b/src/index.html
@@ -43,7 +43,7 @@
                                             <option value="6">6</option>
                                             <option value="9">9</option>
                                             <option value="12">12</option>
-                                            <option value="15" selected=">15</option>
+                                            <option value="15" selected>15</option>
                                             <option value="18">18</option>
                                             <option value="21">21</option>
                                             <option value="24">24</option>