diff --git a/NEWS b/NEWS
index b1e6a21f..05344e98 100644
--- a/NEWS
+++ b/NEWS
@@ -3,6 +3,7 @@ procps-3.2.4 --> procps-3.2.5
 ps: security labels can contain any printable ASCII
 top: help and version message on stdout, with exit(0)    #283541
 ps: SIGTSTP from ^Z shouldn't print bug email address
+slabtop: compile with glibc 2.2.17 (and older, likely)
 
 procps-3.2.3 --> procps-3.2.4
 
diff --git a/slabtop.c b/slabtop.c
index 161df4f1..d33d4da7 100644
--- a/slabtop.c
+++ b/slabtop.c
@@ -11,7 +11,6 @@
 
 #include <stdlib.h>
 #include <stdio.h>
-#include <unistd.h>
 #include <string.h>
 #include <errno.h>
 #include <signal.h>
@@ -20,7 +19,11 @@
 #include <getopt.h>
 #include <ctype.h>
 #include <sys/ioctl.h>
+
 #include <sys/select.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
 
 #include "proc/slab.h"
 #include "proc/version.h"