1 files changed, 1 insertions, 1 deletions
diff --git a/rts/sm/Sweep.c b/rts/sm/Sweep.c
index c927f300d7..2cf8399a3b 100644
--- a/rts/sm/Sweep.c
+++ b/rts/sm/Sweep.c
@@ -22,7 +22,7 @@ void
 sweep(generation *gen)
 {
     bdescr *bd, *prev, *next;
-    nat i;
+    uint32_t i;
     W_ freed, resid, fragd, blocks, live;
     
     ASSERT(countBlocks(gen->old_blocks) == gen->n_old_blocks);