diff --git a/modules/member/member.admin.controller.php b/modules/member/member.admin.controller.php
index 84aefe851..278f58f23 100644
--- a/modules/member/member.admin.controller.php
+++ b/modules/member/member.admin.controller.php
@@ -94,7 +94,7 @@ class memberAdminController extends member
 		$all_args = Context::getRequestVars();
 		foreach($config->signupForm as $formInfo)
 		{
-			if (!$formInfo->isDefaultForm && isset($all_args->{$formInfo->name}))
+			if (!$formInfo->isDefaultForm)
 			{
 				$extra_vars->{$formInfo->name} = $all_args->{$formInfo->name};
 			}
diff --git a/modules/member/member.controller.php b/modules/member/member.controller.php
index ee1bb0607..4a37f3828 100644
--- a/modules/member/member.controller.php
+++ b/modules/member/member.controller.php
@@ -886,7 +886,7 @@ class memberController extends member
 		$extra_vars = new stdClass;
 		foreach($config->signupForm as $formInfo)
 		{
-			if (!$formInfo->isDefaultForm && isset($all_args->{$formInfo->name}))
+			if (!$formInfo->isDefaultForm)
 			{
 				$extra_vars->{$formInfo->name} = $all_args->{$formInfo->name};
 			}