diff --git a/libevmasm/Instruction.h b/libevmasm/Instruction.h
index 19e2a4976..8f52683c1 100644
--- a/libevmasm/Instruction.h
+++ b/libevmasm/Instruction.h
@@ -177,8 +177,8 @@ enum class Instruction: uint8_t
 	LOG3,				///< Makes a log entry; 3 topics.
 	LOG4,				///< Makes a log entry; 4 topics.
 
-	TLOAD = 0xb3,       ///< https://eips.ethereum.org/EIPS/eip-1153
-	TSTORE = 0xb4,      ///< https://eips.ethereum.org/EIPS/eip-1153
+	TLOAD = 0x5c,       ///< https://eips.ethereum.org/EIPS/eip-1153
+	TSTORE = 0x5d,      ///< https://eips.ethereum.org/EIPS/eip-1153
 
 	CREATE = 0xf0,		///< create a new account with associated code
 	CALL,				///< message-call into an account