diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 9ecef064d44..90336b63a77 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,8 @@
+2007-01-02  Steven G. Kargl  <kargls@comcast.net>
+
+	* trans-intrinsic.c (gfc_conv_intrinsic_ibits): Fix call to
+	build_int_cst.
+
 2007-01-02  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/30276
diff --git a/gcc/fortran/trans-intrinsic.c b/gcc/fortran/trans-intrinsic.c
index c10e9e5732f..2c031748966 100644
--- a/gcc/fortran/trans-intrinsic.c
+++ b/gcc/fortran/trans-intrinsic.c
@@ -2331,7 +2331,7 @@ gfc_conv_intrinsic_ibits (gfc_se * se, gfc_expr * expr)
   arg2 = TREE_VALUE (arg2);
   type = TREE_TYPE (arg);
 
-  mask = build_int_cst (NULL_TREE, -1);
+  mask = build_int_cst (type, -1);
   mask = build2 (LSHIFT_EXPR, type, mask, arg3);
   mask = build1 (BIT_NOT_EXPR, type, mask);