diff --git a/email.d b/email.d
index 39be8fe..356a0a4 100644
--- a/email.d
+++ b/email.d
@@ -351,7 +351,7 @@ class MimePart {
 	string gpgproto;
 
 	MimeAttachment toMimeAttachment() {
-        if(type == "multipart/mixed" && stuff.length == 1)
+		if(type == "multipart/mixed" && stuff.length == 1)
 			return stuff[0].toMimeAttachment;
 
 		MimeAttachment att;