diff --git a/canopen_master/include/canopen_master/bcm_sync.h b/canopen_master/include/canopen_master/bcm_sync.h
index c1cd1c1e4..bb91e2de2 100644
--- a/canopen_master/include/canopen_master/bcm_sync.h
+++ b/canopen_master/include/canopen_master/bcm_sync.h
@@ -4,6 +4,7 @@
 #include <socketcan_interface/bcm.h>
 #include <socketcan_interface/socketcan.h>
 #include <canopen_master/canopen.h>
+#include <set>
 
 namespace canopen {