diff --git a/src/cluster.c b/src/cluster.c
index d5ad85fe7..77ec2f1b1 100644
--- a/src/cluster.c
+++ b/src/cluster.c
@@ -37,7 +37,6 @@
 #include <arpa/inet.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/file.h>
 #include <math.h>