diff --git a/coder_sniffer/Drupal/Sniffs/Functions/DiscouragedFunctionsSniff.php b/coder_sniffer/Drupal/Sniffs/Functions/DiscouragedFunctionsSniff.php
index 17fba9c7..5e0a333a 100644
--- a/coder_sniffer/Drupal/Sniffs/Functions/DiscouragedFunctionsSniff.php
+++ b/coder_sniffer/Drupal/Sniffs/Functions/DiscouragedFunctionsSniff.php
@@ -35,6 +35,7 @@ class DiscouragedFunctionsSniff extends ForbiddenFunctionsSniff
         'dcp'                 => null,
         'dd'                  => null,
         'ddebug_backtrace'    => null,
+        'ddm'                 => null,
         'dfb'                 => null,
         'dfbt'                => null,
         'dpm'                 => null,