diff --git a/cmd/csaf_aggregator/config.go b/cmd/csaf_aggregator/config.go
index da91c2f..27f1336 100644
--- a/cmd/csaf_aggregator/config.go
+++ b/cmd/csaf_aggregator/config.go
@@ -307,7 +307,8 @@ func (c *config) setDefaults() {
 	}
 }
 
-func (c *config) check() error {
+// prepare prepares internal state of a loaded configuration.
+func (c *config) prepare() error {
 	if len(c.Providers) == 0 {
 		return errors.New("no providers given in configuration")
 	}
diff --git a/cmd/csaf_aggregator/main.go b/cmd/csaf_aggregator/main.go
index d626192..3411edc 100644
--- a/cmd/csaf_aggregator/main.go
+++ b/cmd/csaf_aggregator/main.go
@@ -56,7 +56,7 @@ func lock(lockFile *string, fn func() error) error {
 func main() {
 	_, cfg, err := parseArgsConfig()
 	options.ErrorCheck(err)
-	options.ErrorCheck(cfg.check())
+	options.ErrorCheck(cfg.prepare())
 
 	p := processor{cfg: cfg}
 	errCheck(lock(cfg.LockFile, p.process))