diff --git a/src/sis.h b/src/sis.h
index c2da9e1..789b1d6 100644
--- a/src/sis.h
+++ b/src/sis.h
@@ -277,7 +277,7 @@
 
 #undef SISGAMMARAMP
 #ifdef XORG_VERSION_CURRENT
-#if XORG_VERSION_CURRENT >= XORG_VERSION_NUMERIC(6,8,99,13,0)
+#if (XORG_VERSION_CURRENT >= XORG_VERSION_NUMERIC(6,8,99,13,0)) || (XORG_VERSION_CURRENT >= XORG_VERSION_NUMERIC(1,0,0,0,0))
 #define SISGAMMARAMP		/* Driver can set gamma ramp; requires additional symbols in xf86sym.h */
 #endif
 #endif