diff --git a/i386-asm.c b/i386-asm.c
index 3d65c00..899e9d8 100644
--- a/i386-asm.c
+++ b/i386-asm.c
@@ -109,9 +109,12 @@ typedef struct Operand {
 } Operand;
 
 static const uint8_t reg_to_size[5] = {
+/*
     [OP_REG8] = 0,
     [OP_REG16] = 1,
     [OP_REG32] = 2,
+*/
+    0, 0, 1, 0, 2
 };
     
 #define WORD_PREFIX_OPCODE 0x66