diff --git a/internal/executor/arguments.go b/internal/executor/arguments.go
index 8fc6a74..bf4e5bf 100644
--- a/internal/executor/arguments.go
+++ b/internal/executor/arguments.go
@@ -144,6 +144,8 @@ func TypeSafetyCheck(name string, value string, argumentType string) error {
 	switch argumentType {
 	case "password":
 		return nil
+	case "raw_string_multiline":
+		return nil
 	case "email":
 		return typeSafetyCheckEmail(name, value)
 	case "url":
diff --git a/webui.dev/js/ArgumentForm.js b/webui.dev/js/ArgumentForm.js
index d226028..6c5a7b2 100644
--- a/webui.dev/js/ArgumentForm.js
+++ b/webui.dev/js/ArgumentForm.js
@@ -132,6 +132,9 @@ class ArgumentForm extends window.HTMLElement {
             domEl.disabled = true
           }
           break
+        case 'raw_string_multiline':
+          domEl = document.createElement('textarea')
+          break
         case 'datetime':
           domEl = document.createElement('input')
           domEl.setAttribute('type', 'datetime-local')