diff --git a/fortran/client/src/player.f90 b/fortran/client/src/player.f90
index f03d20e..846ca10 100644
--- a/fortran/client/src/player.f90
+++ b/fortran/client/src/player.f90
@@ -107,7 +107,7 @@ contains
 
       call json%add(user, 'username', local_username)
       call json%add(user, 'x_pos', this%position%x)
-      call json%add(user, 'y_pos', this%position%z)
+      call json%add(user, 'y_pos', this%position%y)
       call json%add(user, 'command', request_type)
 
       call json%add(root, user)