diff --git a/lib/behat/classes/behat_core_generator.php b/lib/behat/classes/behat_core_generator.php
index 219333bb8bc..9275712babb 100644
--- a/lib/behat/classes/behat_core_generator.php
+++ b/lib/behat/classes/behat_core_generator.php
@@ -470,13 +470,7 @@ class behat_core_generator extends behat_generator_base {
             }
         }
 
-        // Custom exception.
-        try {
-            $this->datagenerator->create_module($activityname, $data, $cmoptions);
-        } catch (coding_exception $e) {
-            throw new Exception('\'' . $activityname . '\' activity can not be added using this step,' .
-                    ' use the step \'I add a "ACTIVITY_OR_RESOURCE_NAME_STRING" to section "SECTION_NUMBER"\' instead');
-        }
+        $this->datagenerator->create_module($activityname, $data, $cmoptions);
     }
 
     /**