diff --git a/frontend/src/components/NewRunParametersV2.tsx b/frontend/src/components/NewRunParametersV2.tsx
index 1fced87abf7..003873e9a8c 100644
--- a/frontend/src/components/NewRunParametersV2.tsx
+++ b/frontend/src/components/NewRunParametersV2.tsx
@@ -205,7 +205,7 @@ function NewRunParametersV2(props: NewRunParametersProps) {
     let allParamtersWithDefault = true;
     let errMsg: string[] = [];
     Object.keys(specParameters).forEach(key => {
-      if (specParameters[key].defaultValue) {
+      if (specParameters[key].defaultValue !== undefined) {
         // TODO(zijianjoy): Make sure to consider all types of parameters.
         // Convert default value to string type first to avoid error from convertInput
         runtimeParametersWithDefault[key] = convertNonUserInputParamToString(