diff --git a/gcc/java/ChangeLog b/gcc/java/ChangeLog
index dab029e97ca..64c35147e2c 100644
--- a/gcc/java/ChangeLog
+++ b/gcc/java/ChangeLog
@@ -1,3 +1,7 @@
+2000-04-23  Tom Tromey  <tromey@cygnus.com>
+
+	* boehm.c (mark_reference_fields): Use int_byte_position.
+
 2000-04-22  Tom Tromey  <tromey@cygnus.com>
 
 	* boehm.c (mark_reference_fields): Only call byte_position on
diff --git a/gcc/java/boehm.c b/gcc/java/boehm.c
index 1a644875eb2..3d8b59399bf 100644
--- a/gcc/java/boehm.c
+++ b/gcc/java/boehm.c
@@ -99,7 +99,7 @@ mark_reference_fields (field, low, high, ubit,
       if (FIELD_STATIC (field))
 	continue;
 
-      offset = tree_low_cst (byte_position (field), 1);
+      offset = int_byte_position (field);
       if (JREFERENCE_TYPE_P (TREE_TYPE (field)))
 	{
 	  unsigned int count;