diff --git a/plugins/auth-proxy.yaml b/plugins/auth-proxy.yaml
index 62071e0eb33..3aff3d9ac40 100644
--- a/plugins/auth-proxy.yaml
+++ b/plugins/auth-proxy.yaml
@@ -53,7 +53,7 @@ spec:
       matchLabels:
         os: darwin
         arch: arm64
-  - bin: kauthproxy
+  - bin: kauthproxy.exe
     uri: https://github.com/int128/kauthproxy/releases/download/v1.2.0/kauthproxy_windows_amd64.zip
     sha256: 7e6c4e92c2cb5b95580322ac881fbb324d85bddeb763aba9b5639200e38201ad
     selector: