diff --git a/packages/components/nodes/moderation/SimplePromptModeration/SimplePromptModerationRunner.ts b/packages/components/nodes/moderation/SimplePromptModeration/SimplePromptModerationRunner.ts
index 10d351cff..c9a116432 100644
--- a/packages/components/nodes/moderation/SimplePromptModeration/SimplePromptModerationRunner.ts
+++ b/packages/components/nodes/moderation/SimplePromptModeration/SimplePromptModerationRunner.ts
@@ -19,6 +19,7 @@ export class SimplePromptModerationRunner implements Moderation {
         if (this.model) {
             const denyArray = this.denyList.split('\n')
             for (const denyStr of denyArray) {
+                if (!denyStr || denyStr === '') continue
                 const res = await this.model.invoke(
                     `Are these two sentences similar to each other? Only return Yes or No.\nFirst sentence: ${input}\nSecond sentence: ${denyStr}`
                 )