diff --git a/src/Assembleur.cpp b/src/Assembleur.cpp
index e0304ed..7168576 100644
--- a/src/Assembleur.cpp
+++ b/src/Assembleur.cpp
@@ -53,7 +53,7 @@ static std::map<std::string, Instruction> INSTRUCTION_KEYS = {
 
 constexpr int LINE_LENGTH = 32;
 constexpr int INSTRUCTION_BITS_COUNT = 2;
-constexpr int OPERATION_BITS_COUNT = 2;
+constexpr int OPERATION_BITS_COUNT = 3;
 constexpr int IMMEDIATE_BITS_COUNT = 1;
 constexpr int INSTRUCTION_BLOCK_SIZE = INSTRUCTION_BITS_COUNT + OPERATION_BITS_COUNT + IMMEDIATE_BITS_COUNT;
 constexpr int REGISTRY_BITS_COUNT = 3;