diff --git a/client/allocrunner/taskrunner/connect_native_hook.go b/client/allocrunner/taskrunner/connect_native_hook.go
index d5497c16e..347f2d209 100644
--- a/client/allocrunner/taskrunner/connect_native_hook.go
+++ b/client/allocrunner/taskrunner/connect_native_hook.go
@@ -108,9 +108,9 @@ func (h *connectNativeHook) Prestart(
 }
 
 const (
-	secretCAFilename       = "consul_ca_file"
-	secretCertfileFilename = "consul_cert_file"
-	secretKeyfileFilename  = "consul_key_file"
+	secretCAFilename       = "consul_ca_file.pem"
+	secretCertfileFilename = "consul_cert_file.pem"
+	secretKeyfileFilename  = "consul_key_file.pem"
 )
 
 func (h *connectNativeHook) copyCertificates(consulConfig consulTransportConfig, dir string) error {