diff --git a/headers/private/system/arch/m68k/arch_commpage_defs.h b/headers/private/system/arch/m68k/arch_commpage_defs.h
index 47aa7322f1..0b6d6e354d 100644
--- a/headers/private/system/arch/m68k/arch_commpage_defs.h
+++ b/headers/private/system/arch/m68k/arch_commpage_defs.h
@@ -12,7 +12,7 @@
 #define COMMPAGE_ENTRY_M68K_SYSCALL	(COMMPAGE_ENTRY_FIRST_ARCH_SPECIFIC + 0)
 #define COMMPAGE_ENTRY_M68K_MEMCPY	(COMMPAGE_ENTRY_FIRST_ARCH_SPECIFIC + 1)
 
-#warning M68K: FIXME: colides with IO space mapped with TT1!
-#define ARCH_USER_COMMPAGE_ADDR (0xffff0000)
+/* 0xffff0000 colides with IO space mapped with TT1 on Atari */
+#define ARCH_USER_COMMPAGE_ADDR (0xfeff0000)
 
 #endif	/* _SYSTEM_ARCH_M68K_COMMPAGE_DEFS_H */