diff --git a/htdocs/core/triggers/interface_20_modWorkflow_WorkflowManager.class.php b/htdocs/core/triggers/interface_20_modWorkflow_WorkflowManager.class.php
index e229e40fd8a..1d46aec1008 100644
--- a/htdocs/core/triggers/interface_20_modWorkflow_WorkflowManager.class.php
+++ b/htdocs/core/triggers/interface_20_modWorkflow_WorkflowManager.class.php
@@ -457,9 +457,9 @@ class InterfaceWorkflowManager extends DolibarrTriggers
 				}
 			}
 			// Automatically create intervention
-			if (!empty($conf->ficheinter->enabled) && !empty($conf->ticket->enabled) && !empty($conf->workflow->enabled) && !empty($conf->global->WORKFLOW_TICKET_CREATE_INTERVENTION) && !empty($object->fk_soc)) {
+			if (!empty($conf->ficheinter->enabled) && !empty($conf->ticket->enabled) && !empty($conf->workflow->enabled) && !empty($conf->global->WORKFLOW_TICKET_CREATE_INTERVENTION)) {
 				$fichinter = new Fichinter($this->db);
-				$fichinter->socid = $object->fk_soc;
+				$fichinter->socid = (int) $object->fk_soc;
 				$fichinter->fk_project = $projectid;
 				$fichinter->fk_contrat = (int) $object->fk_contract;
 				$fichinter->author = $user->id;
diff --git a/htdocs/fichinter/class/fichinter.class.php b/htdocs/fichinter/class/fichinter.class.php
index fac008ec304..ee2bf9269ce 100644
--- a/htdocs/fichinter/class/fichinter.class.php
+++ b/htdocs/fichinter/class/fichinter.class.php
@@ -255,7 +255,7 @@ class Fichinter extends CommonObject
 		}
 
 		if ($this->socid <= 0) {
-			$this->error = 'ErrorBadParameterForFunc';
+			$this->error = 'ErrorFicheinterCompanyDoesNotExist';
 			dol_syslog(get_class($this)."::create ".$this->error, LOG_ERR);
 			return -1;
 		}
diff --git a/htdocs/langs/en_US/interventions.lang b/htdocs/langs/en_US/interventions.lang
index 7c117fcd1f2..a57a84fc4c8 100644
--- a/htdocs/langs/en_US/interventions.lang
+++ b/htdocs/langs/en_US/interventions.lang
@@ -67,3 +67,4 @@ ToCreateAPredefinedIntervention=To create a predefined or recurring intervention
 ConfirmReopenIntervention=Are you sure you want to open back the intervention <b>%s</b>?
 GenerateInter=Generate intervention
 FichinterNoContractLinked=Intervention %s has been created without a linked contract.
+ErrorFicheinterCompanyDoesNotExist=Company does not exist. Intervention has not been created.