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cmd/backend/sessions.go

@@ -45,6 +45,7 @@ func LoadKey(filename string) ([]byte, error) {
 	if err != nil {
 		return nil, fmt.Errorf("error opening key file: %v", err)
 	}
+	defer file.Close()
 
 	key := make([]byte, 32)
 	if err = gob.NewDecoder(file).Decode(&key); err != nil {