diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index af588e0d2e99..252359e462c9 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -201,7 +201,8 @@
 #define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread))
 
 #if defined(__ia64__)    || defined(__x86_64__) ||\
-	defined(__aarch64__) || defined(__PPC64__)
+	defined(__aarch64__) || defined(__PPC64__) ||\
+	defined(__s390x__)
 #define ACPI_MACHINE_WIDTH          64
 #define COMPILER_DEPENDENT_INT64    long
 #define COMPILER_DEPENDENT_UINT64   unsigned long