diff --git a/sim/ppc/ChangeLog b/sim/ppc/ChangeLog
index f9bf0b7f61..a285c7a05f 100644
--- a/sim/ppc/ChangeLog
+++ b/sim/ppc/ChangeLog
@@ -1,3 +1,7 @@
+2006-01-25  Mark Mitchell  <mark@codesourcery.com>
+
+	* words.h (natural32): Define as "int".
+
 2006-01-23  Mark Mitchell  <mark@codesourcery.com>
 
 	* words.h (signed32): Define as "int".
diff --git a/sim/ppc/words.h b/sim/ppc/words.h
index 269fd4e43f..a3de1aa622 100644
--- a/sim/ppc/words.h
+++ b/sim/ppc/words.h
@@ -51,7 +51,7 @@
 /* bit based */
 typedef char natural8;
 typedef short natural16;
-typedef long natural32;
+typedef int natural32;
 
 typedef signed char signed8;
 typedef signed short signed16;