1 files changed, 1 insertions, 1 deletions
diff --git a/room.h b/room.h
index 7cfd4c00..afa6f0ef 100644
--- a/room.h
+++ b/room.h
@@ -146,7 +146,7 @@ namespace QMatrixClient
     class MemberSorter
     {
         public:
-            MemberSorter(const Room* r) : room(r) { }
+            explicit MemberSorter(const Room* r) : room(r) { }
 
             bool operator()(User* u1, User* u2) const;