diff --git a/inc/utility-functions.php b/inc/utility-functions.php
index d8979132..ac4305bd 100644
--- a/inc/utility-functions.php
+++ b/inc/utility-functions.php
@@ -92,4 +92,37 @@ function pp_series_upgrade_function()
     
         }
     }
+
+    if (!function_exists('pp_series_locate_template')) {
+        /**
+         * Check if template exist in theme/child theme
+         * 
+         * We wouldn't use wordpress locate_template()
+         * as it support theme compact which load 
+         * default template for files like sidebar.php 
+         * even if it doesn't exist in theme
+         *
+         * @param array $template
+         * @return void
+         */
+        function pp_series_locate_template($template_names)
+        {
+            $located = false;
+            foreach ( (array) $template_names as $template_name ) {
+                if ( ! $template_name ) {
+                    continue;
+                }
+                if ( file_exists( STYLESHEETPATH . '/' . $template_name ) ) {
+                    $located = STYLESHEETPATH . '/' . $template_name;
+                    break;
+                } elseif ( file_exists( TEMPLATEPATH . '/' . $template_name ) ) {
+                    $located = TEMPLATEPATH . '/' . $template_name;
+                    break;
+                }
+            }
+
+            return $located;
+    
+        }
+    }
 ?>
diff --git a/readme.txt b/readme.txt
index 4b4e6f67..30a46067 100644
--- a/readme.txt
+++ b/readme.txt
@@ -139,6 +139,7 @@ v2.7.1- [===unreleased===]
 * Added: Allow users to customize buttons #311
 * Added: "Click to view" for "Series Table of Contents URL" #320
 * Added: Add series group template to PRO version group addon #202
+* Fixed: Sidebar warning for theme without sidebar.php on custom template #335
 
 v2.7.0- 2021-11-17
 * Fixed: Clarify what HTML is allowed in templates #273
diff --git a/seriestoc.php b/seriestoc.php
index 75b316b5..db88f01e 100644
--- a/seriestoc.php
+++ b/seriestoc.php
@@ -25,5 +25,9 @@
 			</div><!-- #content -->
 		</section><!-- #primary -->
 
-<?php get_sidebar(); ?>
+<?php 
+if(pp_series_locate_template( array( 'sidebar.php' ) )){
+    get_sidebar(); 
+}
+?>
 <?php get_footer(); ?>
\ No newline at end of file