diff --git a/packages/editor-ui/src/components/ParameterInput.vue b/packages/editor-ui/src/components/ParameterInput.vue
index 1a5740979d..c7e35e7e72 100644
--- a/packages/editor-ui/src/components/ParameterInput.vue
+++ b/packages/editor-ui/src/components/ParameterInput.vue
@@ -365,7 +365,7 @@ const getIssues = computed<string[]>(() => {
 			if (Array.isArray(displayValue.value)) {
 				checkValues = checkValues.concat(displayValue.value);
 			} else {
-				checkValues.push(displayValue.value as string);
+				checkValues = checkValues.concat(displayValue.value?.toString().split(','));
 			}
 		}
 
@@ -856,6 +856,8 @@ async function optionSelected(command: string) {
 			(!props.modelValue || props.modelValue === '[Object: null]')
 		) {
 			valueChanged('={{ 0 }}');
+		} else if (props.parameter.type === 'multiOptions') {
+			valueChanged(`={{ ${JSON.stringify(props.modelValue)} }}`);
 		} else if (
 			props.parameter.type === 'number' ||
 			props.parameter.type === 'boolean' ||
diff --git a/packages/editor-ui/src/components/ParameterInputWrapper.vue b/packages/editor-ui/src/components/ParameterInputWrapper.vue
index 93534fede9..2027294400 100644
--- a/packages/editor-ui/src/components/ParameterInputWrapper.vue
+++ b/packages/editor-ui/src/components/ParameterInputWrapper.vue
@@ -132,8 +132,11 @@ const evaluatedExpression = computed<Result<unknown, Error>>(() => {
 		}
 
 		if (props.isForCredential) opts.additionalKeys = resolvedAdditionalExpressionData.value;
-
-		return { ok: true, result: workflowHelpers.resolveExpression(value, undefined, opts) };
+		const stringifyExpressionResult = props.parameter.type !== 'multiOptions';
+		return {
+			ok: true,
+			result: workflowHelpers.resolveExpression(value, undefined, opts, stringifyExpressionResult),
+		};
 	} catch (error) {
 		return { ok: false, error };
 	}