diff --git a/pkg/simple/client/factory.go b/pkg/simple/client/factory.go
index d2774fc5bf953aeee1d44847b3a6e2c7bb688728..598b94cbb7eee7939047d58535fe51031d4a7365 100644
--- a/pkg/simple/client/factory.go
+++ b/pkg/simple/client/factory.go
@@ -20,7 +20,7 @@ type ClientSetNotEnabledError struct {
 }
 
 func (e ClientSetNotEnabledError) Error() string {
-	return fmt.Sprintf("client set not enabled: %s", e.err.Error())
+	return fmt.Sprintf("client set not enabled: %v", e.err)
 }
 
 type ClientSetOptions struct {