diff --git a/bin/build.py b/bin/build.py
index 0e92d41..957350c 100755
--- a/bin/build.py
+++ b/bin/build.py
@@ -96,6 +96,7 @@ def generate_html(book, toc):
    # book_build_d_pages = os.path.join(_BUILD_d,'pages')
    # os.mkdir(book_build_d_pages)
 
+   pi = 0
    for p in toc:
       print(toc[p]['file'])
       pagename = toc[p]['file'].replace('.md', '')
@@ -125,7 +126,7 @@ def generate_html(book, toc):
 
 
       # append html story page to template_dom
-      story_page = BeautifulSoup('<div class="story-page" id="'+pagename+'"></div>', 'html.parser')
+      story_page = BeautifulSoup('<div class="story-page" id="story-page-'+str(pi)+'"></div>', 'html.parser')
       story_page.div.append(output_dom)
       story_dom.append(story_page)
 
@@ -148,6 +149,7 @@ def generate_html(book, toc):
 
          shutil.copyfile(src_img, dest_img)
 
+      pi = pi+1
 
    # create main html file from filled template html dom
    book_html_f = os.path.join(_BUILD_d,'stories.html')