diff --git a/src/sigar_util.c b/src/sigar_util.c
index 30d188ba..40fc4c0e 100644
--- a/src/sigar_util.c
+++ b/src/sigar_util.c
@@ -464,6 +464,8 @@ SIGAR_DECLARE(int) sigar_nfs_ping(char *host)
     if (rpc_stat != RPC_SUCCESS) {
         retval = -1;
     }
+
+    close(sock);
     clnt_destroy(client);
 
     return retval;