diff --git a/source/include/platform/aclinux.h b/source/include/platform/aclinux.h
index 0041656..54dde48 100644
--- a/source/include/platform/aclinux.h
+++ b/source/include/platform/aclinux.h
@@ -210,9 +210,7 @@
 #define ACPI_FLUSH_CPU_CACHE()
 #define ACPI_CAST_PTHREAD_T(Pthread) ((ACPI_THREAD_ID) (Pthread))
 
-#if defined(__ia64__)    || (defined(__x86_64__) && !defined(__ILP32__)) ||\
-    defined(__aarch64__) || defined(__PPC64__) ||\
-    defined(__s390x__)
+#if defined(__LP64__)
 #define ACPI_MACHINE_WIDTH          64
 #define COMPILER_DEPENDENT_INT64    long
 #define COMPILER_DEPENDENT_UINT64   unsigned long