diff --git a/htdocs/core/class/interfaces.class.php b/htdocs/core/class/interfaces.class.php
index be93173910f..1a9c8bacb10 100644
--- a/htdocs/core/class/interfaces.class.php
+++ b/htdocs/core/class/interfaces.class.php
@@ -230,10 +230,6 @@ class Interfaces
 				if (method_exists($objMod, 'runTrigger')) {	// New method to implement
 					//dol_syslog(get_class($this)."::run_triggers action=".$action." Launch runTrigger for file '".$files[$key]."'", LOG_DEBUG);
 					$result = $objMod->runTrigger($action, $object, $user, $langs, $conf);
-				} elseif (method_exists($objMod, 'run_trigger')) {	// Deprecated method
-					dol_syslog(get_class($this)."::run_triggers action=".$action." Launch old method run_trigger (rename your trigger into runTrigger) for file '".$files[$key]."'", LOG_WARNING);
-					// @phan-suppress-next-line PhanUndeclaredMethod
-					$result = $objMod->run_trigger($action, $object, $user, $langs, $conf);
 				} else {
 					dol_syslog(get_class($this)."::run_triggers action=".$action." A trigger was declared for class ".get_class($objMod)." but method runTrigger was not found", LOG_ERR);
 				}