diff --git a/src/include/device/dram/ddr3.h b/src/include/device/dram/ddr3.h
index da9dad2a57..d58cdce8e1 100644
--- a/src/include/device/dram/ddr3.h
+++ b/src/include/device/dram/ddr3.h
@@ -36,7 +36,7 @@
 #define TCK_1333MHZ     192
 #define TCK_1200MHZ     212
 #define TCK_1066MHZ     240
-#define TCK_933MHZ      275
+#define TCK_933MHZ      274
 #define TCK_800MHZ      320
 #define TCK_666MHZ      384
 #define TCK_533MHZ      480