diff --git a/src/tetris.h b/src/tetris.h
index 87be573..cb299af 100644
--- a/src/tetris.h
+++ b/src/tetris.h
@@ -17,10 +17,10 @@ enum tetromino {
 	TET_L = 0x04,
 	TET_S = 0x05,
 	TET_Z = 0x06,
-	TET_R0 = 0x08,
-	TET_R90 = 0x10,
-	TET_R180 = 0x20,
-	TET_R270 = 0x40,
+	TET_R0 = 0x00,
+	TET_R90 = 0x08,
+	TET_R180 = 0x10,
+	TET_R270 = 0x18,
 };
 
 /* Stores the co-ordinates of the four blocks in a 4x4 plane.