diff --git a/cmd/backup/config_provider.go b/cmd/backup/config_provider.go
index 4225d708..8cda171b 100644
--- a/cmd/backup/config_provider.go
+++ b/cmd/backup/config_provider.go
@@ -103,7 +103,12 @@ func loadConfigsFromEnvFiles(directory string) ([]*Config, error) {
 		if err != nil {
 			return nil, errwrap.Wrap(err, fmt.Sprintf("error reading %s", item.Name()))
 		}
-		envFile, err := godotenv.Unmarshal(os.ExpandEnv(string(f)))
+		envFile, err := godotenv.Unmarshal(os.Expand(string(f), func(s string) string {
+			if val, ok := os.LookupEnv(s); ok {
+				return val
+			}
+			return s
+		}))
 		if err != nil {
 			return nil, errwrap.Wrap(err, fmt.Sprintf("error reading config file %s", p))
 		}