diff --git a/src/ca65/macpack/cpu.mac b/src/ca65/macpack/cpu.mac
index 837b74071..f7698954a 100644
--- a/src/ca65/macpack/cpu.mac
+++ b/src/ca65/macpack/cpu.mac
@@ -1,5 +1,5 @@
 
-/* CPU bitmask constants */
+; CPU bitmask constants
 CPU_ISET_6502      = $01
 CPU_ISET_6502X     = $02
 CPU_ISET_65SC02    = $04
@@ -8,7 +8,7 @@ CPU_ISET_65816     = $10
 CPU_ISET_SUNPLUS   = $20
 CPU_ISET_SWEET16   = $40
 
-/* CPU capabilities */
+; CPU capabilities
 CPU_6502           = CPU_ISET_6502
 CPU_6502X          = CPU_ISET_6502|CPU_ISET_6502X
 CPU_65SC02         = CPU_ISET_6502|CPU_ISET_65SC02