diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 8540979029b..276749ecf9a 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2015-02-23  Pedro Alves  <palves@redhat.com>
+
+	* gdb.base/info-os.c: Include stdlib.h.
+
 2015-02-22  Doug Evans  <xdje42@gmail.com>
 
 	PR symtab/17855
diff --git a/gdb/testsuite/gdb.base/info-os.c b/gdb/testsuite/gdb.base/info-os.c
index 8ceaaff4268..5f91eef1177 100644
--- a/gdb/testsuite/gdb.base/info-os.c
+++ b/gdb/testsuite/gdb.base/info-os.c
@@ -23,6 +23,7 @@
 #include <arpa/inet.h>
 #include <sys/socket.h>
 #include <unistd.h>
+#include <stdlib.h>
 
 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;