diff --git a/8086_assembly_01/dasm.cpp b/8086_assembly_01/dasm.cpp
index 34b9ff2..281e1b9 100644
--- a/8086_assembly_01/dasm.cpp
+++ b/8086_assembly_01/dasm.cpp
@@ -111,8 +111,10 @@ void decode_register(uint16_t instruction, bool word, char *dest) {
 	};
   // clang-format on
 
+  static const uint16_t ROW_WIDTH = 2;
+
   uint16_t offset = instruction & reg_mask;
 
   // Multiply offset by 2 since each row has 2 columns
-  strcpy(dest, table[offset * 2 + (uint16_t)word]);
+  strcpy(dest, table[offset * ROW_WIDTH + (uint16_t)word]);
 }