diff --git a/proxy/pkg/config/config_test.go b/proxy/pkg/config/config_test.go
index 3e5ab34..74eaa55 100644
--- a/proxy/pkg/config/config_test.go
+++ b/proxy/pkg/config/config_test.go
@@ -107,7 +107,9 @@ func TestTargetConfig_ParsingControlConnMaxProtocolVersion(t *testing.T) {
 	// test-specific setup
 	setTargetContactPointsAndPortEnvVars()
 
-	conf := New().parseEnvVars()
+	conf := New()
+	err := conf.parseEnvVars()
+	require.Nil(t, err)
 
 	tests := []struct {
 		name                          string