diff --git a/lib/sam.c b/lib/sam.c
index 1596ae2e..33aa3944 100644
--- a/lib/sam.c
+++ b/lib/sam.c
@@ -46,6 +46,7 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <errno.h>
+#include <poll.h>
 
 #include <corosync/corotypes.h>
 #include <qb/qbipcc.h>