diff --git a/cpu.c b/cpu.c
index 31ca8e6..e6d5080 100644
--- a/cpu.c
+++ b/cpu.c
@@ -1633,7 +1633,7 @@ static const op_t0 ops0[] PROGMEM = {
   {0xFF4, MASK_10B      , 5 }, // LD_R_SPL
   {0xC00, MASK_6B   , 7 }, // ADD_R_I
   {0xC40, MASK_6B   , 7 }, // ADC_R_I
-  {0xB40, MASK_6B   , 7 }, // SBC_R_I
+  {0xD40, MASK_6B   , 7 }, // SBC_R_I
   {0xC80, MASK_6B   , 7 }, // AND_R_I
   {0xCC0, MASK_6B   , 7 }, // OR_R_I
   {0xD00, MASK_6B   , 7 }, // XOR_R_I