diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4e5196fab912..ed7d5ff772b1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-06-22  Richard Earnshaw  <rearnsha@arm.com>
+
+	* arm.h (BIGGEST_ALIGNMENT): Use TARGET_REALLY_IWMMXT for selecting
+	64-bit alignment.
+
 2003-06-22  Richard Earnshaw  <rearnsha@arm.com>
 
 	* arm.md (all call_value patterns): Remove register constraints on
diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h
index 0a3dcda693b9..74201ffb01e2 100644
--- a/gcc/config/arm/arm.h
+++ b/gcc/config/arm/arm.h
@@ -753,7 +753,7 @@ extern int arm_is_6_or_7;
 
 #define EMPTY_FIELD_BOUNDARY  32
 
-#define BIGGEST_ALIGNMENT  (TARGET_ATPCS ? 64 : 32)
+#define BIGGEST_ALIGNMENT  (TARGET_REALLY_IWMMXT ? 64 : 32)
 
 #define TYPE_NEEDS_IWMMXT_ALIGNMENT(TYPE)	\
  (TARGET_REALLY_IWMMXT				\