diff --git a/ChangeLog b/ChangeLog
index 3972c19c6..d59978a33 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2006-05-19  Adam Jackson  <ajax@freedesktop.org>
+
+	* include/os.h:
+	Remove dead DPMS timer functions from the installed headers. 
+	(Fredrik Höglund)
+
 2006-05-18  Adam Jackson  <ajax@freedesktop.org>
 
 	* hw/xfree86/common/xf86Priv.h:
diff --git a/include/os.h b/include/os.h
index 8c46ec943..5a2e6c972 100644
--- a/include/os.h
+++ b/include/os.h
@@ -216,11 +216,6 @@ extern void TimerFree(OsTimerPtr /* pTimer */);
 extern void SetScreenSaverTimer(void);
 extern void FreeScreenSaverTimer(void);
 
-#ifdef DPMSExtension
-extern void SetDPMSTimers(void);
-extern void FreeDPMSTimers(void);
-#endif
-
 extern SIGVAL AutoResetServer(int /*sig*/);
 
 extern SIGVAL GiveUp(int /*sig*/);