diff --git a/src/decode.h b/src/decode.h
index 75f2655..a76bcdd 100644
--- a/src/decode.h
+++ b/src/decode.h
@@ -1,4 +1,6 @@
 #include "global.h"
 #include "a64instruction.h"
 
+#define BYTE_BITS 8
+
 a64inst_instruction *decode(word w);
\ No newline at end of file
diff --git a/src/emulator.h b/src/emulator.h
index b4ea4bf..34601ea 100644
--- a/src/emulator.h
+++ b/src/emulator.h
@@ -3,7 +3,6 @@
 /************************************
  * DEFINITIONS
  ************************************/
- #define BYTE_BITS 8
 
 /************************************
  * STRUCTS