diff --git a/comic_reader.js b/comic_reader.js
index 938ca2a..818ec1d 100644
--- a/comic_reader.js
+++ b/comic_reader.js
@@ -258,6 +258,8 @@ function toggleViewMode() {
         moveReaderDisplayToPage(CURRENT_PAGE)
         IS_PAGE_MODE = true
     }
+    
+    updateProgressBar()
 }
 
 function moveReader(to_next) {