diff --git a/osd/main.c b/osd/main.c
index a88a2e0..8e3f577 100644
--- a/osd/main.c
+++ b/osd/main.c
@@ -310,7 +310,7 @@ int main(int argc, char *argv[])
         PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_SHARED, -1, 0);
     for (int id = 0; id < MAX_OSD; id++)
     {
-        osds[id].hand = -1;
+        osds[id].hand = id;
         osds[id].size = DEF_SIZE;
         osds[id].posx = DEF_POSX;
         osds[id].posy = DEF_POSY;