diff --git a/src/main/java/com/baomidou/plugin/idea/mybatisx/service/KotlinService.java b/src/main/java/com/baomidou/plugin/idea/mybatisx/service/KotlinService.java
index 22ef46985d03430ed4118c36abfc2439b267db9c..63b9e464dae48c31e3bb5a8bcdb1d1119875d68b 100644
--- a/src/main/java/com/baomidou/plugin/idea/mybatisx/service/KotlinService.java
+++ b/src/main/java/com/baomidou/plugin/idea/mybatisx/service/KotlinService.java
@@ -45,6 +45,9 @@ public class KotlinService {
      */
     public void processKotlinMethod(@NotNull KtNamedFunction ktMethod, @NotNull Processor<IdDomElement> processor) {
         KtClass parentClass = PsiTreeUtil.getParentOfType(ktMethod, KtClass.class);
+        if (parentClass == null) {
+            return;
+        }
         if (!KtPsiUtil.isTrait(parentClass)) {
             return;
         }