diff --git a/application/cmdbabstract.class.inc.php b/application/cmdbabstract.class.inc.php
index a2a7e2654f..e19a985b6a 100644
--- a/application/cmdbabstract.class.inc.php
+++ b/application/cmdbabstract.class.inc.php
@@ -2431,7 +2431,7 @@ EOF
 			$oPage->add('</div>');
 		}
 		$oPage->add("<div class=\"wizContainer\">\n");
-		$oPage->add("<form id=\"apply_stimulus\" method=\"post\" onSubmit=\"return OnSubmit('apply_stimulus');\">\n");
+		$oPage->add("<form id=\"apply_stimulus\" method=\"post\" enctype=\"multipart/form-data\" onSubmit=\"return OnSubmit('apply_stimulus');\">\n");
 		$aDetails = array();
 		$iFieldIndex = 0;
 		$aFieldsMap = array();