diff --git a/wrap.go b/wrap.go
index eb929db..5d1097e 100644
--- a/wrap.go
+++ b/wrap.go
@@ -19,6 +19,9 @@ var (
 // Without args, leaves the provided message intact, so a message may be generated or provided externally.
 // With args, a formatting is performed, and it is therefore expected a format string to be constant.
 func Decorate(err error, message string, args ...interface{}) *Error {
+	if err == nil {
+		return nil
+	}
 	return NewErrorBuilder(transparentWrapper).
 		WithConditionallyFormattedMessage(message, args...).
 		WithCause(err).
@@ -30,6 +33,9 @@ func Decorate(err error, message string, args ...interface{}) *Error {
 // Designed to be used when a original error is passed from another goroutine rather than from a direct method call.
 // If, however, it is called in the same goroutine, formatter makes some moderated effort to remove duplication.
 func EnhanceStackTrace(err error, message string, args ...interface{}) *Error {
+	if err == nil {
+		return nil
+	}
 	return NewErrorBuilder(transparentWrapper).
 		WithConditionallyFormattedMessage(message, args...).
 		WithCause(err).