diff --git a/clients/c/torture.sh b/clients/c/torture.sh
index 5fc10c8..4b12fde 100755
--- a/clients/c/torture.sh
+++ b/clients/c/torture.sh
@@ -6,5 +6,6 @@ export COSMO_DEBUG=
 make test
 
 while :; do
-	valgrind --leak-check=full --show-reachable=yes --num-callers=20 --suppressions=suppressions ./test > torture.log 2>&1
+  date > torture.log
+	valgrind --leak-check=full --show-reachable=yes --num-callers=20 --suppressions=suppressions ./test >> torture.log 2>&1
 done