diff --git a/bsd-core/drm_os_freebsd.h b/bsd-core/drm_os_freebsd.h
index a5049f54..28751a24 100644
--- a/bsd-core/drm_os_freebsd.h
+++ b/bsd-core/drm_os_freebsd.h
@@ -79,7 +79,7 @@
 #endif
 
 #ifdef __i386__
-#define __REALLY_HAVE_MTRR	(__HAVE_MTRR) && (__FreeBSD_version >= 500000)
+#define __REALLY_HAVE_MTRR	(__HAVE_MTRR) && (__FreeBSD_version >= 460000)
 #else
 #define __REALLY_HAVE_MTRR	0
 #endif
diff --git a/bsd/drm_os_freebsd.h b/bsd/drm_os_freebsd.h
index a5049f54..28751a24 100644
--- a/bsd/drm_os_freebsd.h
+++ b/bsd/drm_os_freebsd.h
@@ -79,7 +79,7 @@
 #endif
 
 #ifdef __i386__
-#define __REALLY_HAVE_MTRR	(__HAVE_MTRR) && (__FreeBSD_version >= 500000)
+#define __REALLY_HAVE_MTRR	(__HAVE_MTRR) && (__FreeBSD_version >= 460000)
 #else
 #define __REALLY_HAVE_MTRR	0
 #endif