diff --git a/util/ceg/defaults/storage/C_hol_cst.c b/util/ceg/defaults/storage/C_hol_cst.c
index ca01778ee..45e40f282 100644
--- a/util/ceg/defaults/storage/C_hol_cst.c
+++ b/util/ceg/defaults/storage/C_hol_cst.c
@@ -29,6 +29,8 @@
 #define relocEM_PSIZE	reloc4
 #endif
 
+extern int holno;
+
 C_hol_cst( n, w, i)
 arith n, w;
 int i;