diff --git a/Hardware:-Hologram-Projector.md b/Hardware:-Hologram-Projector.md
index 617e68f..f3c4609 100644
--- a/Hardware:-Hologram-Projector.md
+++ b/Hardware:-Hologram-Projector.md
@@ -19,9 +19,9 @@ Note that the Hologram Projector will clear itself at the end of the tick, it is
 Display the number 10, which will be shown as `0x000A`
 ```assembly
 HWID_HOLO    EQU 0x9
-DISPLAY_HEX  EQU 1
+HOLO_DISPLAY_HEX  EQU 1
 .text
-    MOV A, DISPLAY_HEX
+    MOV A, HOLO_DISPLAY_HEX
     MOV B, 10
     HWI HWID_HOLO
     BRK