diff --git a/gst/playback/test4.c b/gst/playback/test4.c
index b688ea91be..62323db177 100644
--- a/gst/playback/test4.c
+++ b/gst/playback/test4.c
@@ -16,6 +16,7 @@
  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  * Boston, MA 02111-1307, USA.
  */
+#include <stdlib.h>             /* exit() */
 #include <unistd.h>
 
 #include <gst/gst.h>
diff --git a/gst/playback/test5.c b/gst/playback/test5.c
index e72cab1016..44e7a01f55 100644
--- a/gst/playback/test5.c
+++ b/gst/playback/test5.c
@@ -17,6 +17,7 @@
  * Boston, MA 02111-1307, USA.
  */
 #include <unistd.h>
+#include <stdlib.h>             /* exit */
 #include <gst/gst.h>
 
 static GMainLoop *loop;
diff --git a/gst/playback/test6.c b/gst/playback/test6.c
index 74ed8985d3..b6ac243342 100644
--- a/gst/playback/test6.c
+++ b/gst/playback/test6.c
@@ -17,6 +17,7 @@
  * Boston, MA 02111-1307, USA.
  */
 #include <unistd.h>
+#include <stdlib.h>             /* exit */
 #include <gst/gst.h>
 
 static void