diff --git a/updatebot.py b/updatebot.py
index fa67b2b..589b5f9 100644
--- a/updatebot.py
+++ b/updatebot.py
@@ -136,11 +136,11 @@ class KustomizeProject(BaseProject):
         images = kustomization.setdefault('images', [])
         new_tag = self.tag_format.format(version=version)
         for image in images:
-            if image['image'] == self.image:
+            if image['name'] == self.image:
                 image['newTag'] = new_tag
                 break
         else:
-            images.append({'image': self.image, 'newTag': new_tag})
+            images.append({'name': self.image, 'newTag': new_tag})
         with filepath.open('wb') as f:
             yaml.dump(kustomization, f)