diff --git a/libretroshare/src/serialiser/rsnxsitems.cc b/libretroshare/src/serialiser/rsnxsitems.cc
index 19e44c049..3d217ee72 100644
--- a/libretroshare/src/serialiser/rsnxsitems.cc
+++ b/libretroshare/src/serialiser/rsnxsitems.cc
@@ -1075,7 +1075,7 @@ uint32_t RsNxsSerialiser::sizeNxsSyncGrpItem(RsNxsSyncGrpItem *item)
     s += 4; // publishTs
     s += 1; // flag
     s += item->grpId.serial_size();
-    s + item->authorId.serial_size();
+    s += item->authorId.serial_size();
 
     return s;
 }
diff --git a/retroshare-gui/src/gui/Circles/CreateCircleDialog.cpp b/retroshare-gui/src/gui/Circles/CreateCircleDialog.cpp
index 34882ce2f..a93cb764c 100644
--- a/retroshare-gui/src/gui/Circles/CreateCircleDialog.cpp
+++ b/retroshare-gui/src/gui/Circles/CreateCircleDialog.cpp
@@ -28,6 +28,8 @@
 #include <retroshare/rspeers.h>
 #include <retroshare/rsidentity.h>
 
+#include <algorithm>
+
 #define CREATECIRCLEDIALOG_CIRCLEINFO 2
 #define CREATECIRCLEDIALOG_IDINFO     3