diff --git a/mps/src/mpsicv.c b/mps/src/mpsicv.c
index 44c7d9d5b15..954693e920c 100644
--- a/mps/src/mpsicv.c
+++ b/mps/src/mpsicv.c
@@ -1,6 +1,6 @@
 /* impl.c.mpsicv: MPSI COVERAGE TEST
  *
- * $HopeName: MMsrc!mpsicv.c(trunk.8) $
+ * $HopeName: MMsrc!mpsicv.c(trunk.9) $
  * Copyright (C) 1996 Harlequin Group, all rights reserved
  */
 
@@ -98,7 +98,7 @@ static void ap_create_v_test(mps_pool_t pool, mps_rank_t rank, ...)
 static mps_res_t root_single(mps_ss_t ss, void *p, size_t s)
 {
   testlib_unused(s);
-  return mps_fix(ss, (mps_addr_t)p);
+  return mps_fix(ss, (mps_addr_t *)p);
 }
 
 static void *test(void *arg, size_t s)