diff --git a/pkg/util/config/config.go b/pkg/util/config/config.go
index cd038e9a8..fdfcbc47e 100644
--- a/pkg/util/config/config.go
+++ b/pkg/util/config/config.go
@@ -79,6 +79,9 @@ func NewFromMap(m map[string]string) *Config {
 			value = structField.Default
 		}
 
+		if value == "" {
+			continue
+		}
 		err := processField(value, structField.Field)
 		if err != nil {
 			panic(err)