diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b911fe5e826..67bc5240cb5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2002-03-26  Richard Henderson  <rth@redhat.com>
+
+	* expr.h (ADD_PARM_SIZE): One more convert for INC.
+
 2002-03-26  Phil Edwards  <pme@gcc.gnu.org>
 
 	* gcc.c (cpp_options):  Preserve relative ordering of -pedantic
@@ -5,6 +9,7 @@
 	(cc1_options):  Likewise.
 
 2002-03-26  Hans Boehm <Hans_Boehm@hp.com>
+
 	* config/ia64/linux.h (MD_FALLBACK_FRAME_STATE_FOR):
 	Restore more of the signal context.  Set no_reg_stack_frame.
 	* config/ia64/unwind-ia64.c (unw_state_record):
diff --git a/gcc/expr.h b/gcc/expr.h
index 792c18c2423..9ffc61fd9a8 100644
--- a/gcc/expr.h
+++ b/gcc/expr.h
@@ -81,7 +81,7 @@ do {							\
   if (host_integerp (inc, 0))				\
     (TO).constant += tree_low_cst (inc, 0);		\
   else if ((TO).var == 0)				\
-    (TO).var = inc;					\
+    (TO).var = convert (ssizetype, inc);		\
   else							\
     (TO).var = size_binop (PLUS_EXPR, (TO).var,		\
 			   convert (ssizetype, inc));	\