diff --git a/src/main/java/com/interplug/qcast/biz/pwrGnrSimulation/dto/PwrGnrSimResponse.java b/src/main/java/com/interplug/qcast/biz/pwrGnrSimulation/dto/PwrGnrSimResponse.java
index 32ef4edd..b6bcf272 100644
--- a/src/main/java/com/interplug/qcast/biz/pwrGnrSimulation/dto/PwrGnrSimResponse.java
+++ b/src/main/java/com/interplug/qcast/biz/pwrGnrSimulation/dto/PwrGnrSimResponse.java
@@ -67,5 +67,5 @@ public class PwrGnrSimResponse {
   private List<PwrGnrSimRoofResponse> pcsList;
 
   @Schema(description = "안내문구")
-  private String guideInfo;
+  private String guideInfo = "";
 }