diff --git a/environs/ec2/auth.go b/environs/ec2/auth.go
index <HASH>..<HASH> 100644
--- a/environs/ec2/auth.go
+++ b/environs/ec2/auth.go
@@ -47,7 +47,7 @@ func expandFileName(f string) string {
 func authorizedKeys(path string) (string, error) {
 	var files []string
 	if path == "" {
-		files = []string{"id_dsa.pub", "id_rsa.pub", "identity.pub", "authorized_keys"}
+		files = []string{"id_dsa.pub", "id_rsa.pub", "identity.pub"}
 	} else {
 		files = []string{path}
 	}
do not use authorized_keys file