diff --git a/cpukit/ChangeLog b/cpukit/ChangeLog
index f016cdc4a6..85d3edcbd1 100644
--- a/cpukit/ChangeLog
+++ b/cpukit/ChangeLog
@@ -1,3 +1,7 @@
+2007-03-18	Ralf Corsépius <ralf.corsepius@rtems.org>
+
+	* score/src/heapwalk.c: include stdlib.h.
+
 2007-03-17	Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* libnetworking/sys/buf.h, libnetworking/sys/conf.h:
diff --git a/cpukit/score/src/heapwalk.c b/cpukit/score/src/heapwalk.c
index b85529cf9d..424a1302dd 100644
--- a/cpukit/score/src/heapwalk.c
+++ b/cpukit/score/src/heapwalk.c
@@ -15,6 +15,8 @@
 #include "config.h"
 #endif
 
+#include <stdlib.h> /* abort */
+
 #include <rtems/system.h>
 #include <rtems/score/sysstate.h>
 #include <rtems/score/heap.h>