1 files changed, 2 insertions, 0 deletions
diff --git a/Swiften/JID/JID.h b/Swiften/JID/JID.h
index 798860d..eac1e2a 100644
--- a/Swiften/JID/JID.h
+++ b/Swiften/JID/JID.h
@@ -47,6 +47,8 @@ namespace Swift {
 
 			/**
 			 * See std::string constructor.
+			 *
+			 * Must not be NULL.
 			 */
 			JID(const char*);