diff --git a/init.sh b/init.sh
index 2546f81..8ab13cd 100755
--- a/init.sh
+++ b/init.sh
@@ -7,8 +7,8 @@ mkdir -p data
 ls data | grep "$DATABASE" > /dev/null
 
 if [ $? -eq 0 ]; then
-  echo "Created data/books-backup.db"
-  mv "data/$DATABASE" data/books-backup.db
+  echo "Created data/books-backup.sqlite"
+  mv "data/$DATABASE" data/books-backup.sqlite
 fi
 
 sqlite3 "data/$DATABASE" < isbn_sort/schema.sql
\ No newline at end of file
diff --git a/isbn_sort/book.py b/isbn_sort/book.py
index f4d7c2f..b273399 100644
--- a/isbn_sort/book.py
+++ b/isbn_sort/book.py
@@ -9,8 +9,9 @@ class Book:
         try:
             isbn = str(isbn).replace("-", "")
             int(isbn)
-        except ValueError:
-            raise ValueError("ISBN must be an int")
+        except ValueError: # this can be ISBN-10
+            pass
+            # raise ValueError("ISBN must be an int")
 
         self.isbn = isbn
         self.title = None
diff --git a/isbn_sort/templates/index.html b/isbn_sort/templates/index.html
index 344cc28..4255d1f 100644
--- a/isbn_sort/templates/index.html
+++ b/isbn_sort/templates/index.html
@@ -62,8 +62,8 @@
           <td><p {% if book.publisher == None %}class="red"{% endif %}>{{ book.publisher }}</p></td>
           <td><p {% if book.count != 1 %}class="red"{% endif %}>{{ book.count }}</p></td>
           <td>
-              <button class="action" onclick="openEditBookDialog({{ book.isbn }})">✏️</button>
-              <button class="action" onclick="openDeleteBookDialog({{ book.isbn }})">🗑️</button>
+              <button class="action" onclick='openEditBookDialog("{{ book.isbn }}")'>✏️</button>
+              <button class="action" onclick='openDeleteBookDialog("{{ book.isbn }}")'>🗑️</button>
           </td>
       </tr>
       {% endfor %}