diff --git a/checkin_notes b/checkin_notes
index fe6447f926..4714622a4b 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -10005,3 +10005,9 @@ David  12 Dec 2009
         app_control.cpp
     lib/
         app_ipc.h
+
+David  13 Dec 2009
+    - wrapper: fix fraction-done bug
+
+    samples/wrapper/
+        wrapper.cpp
diff --git a/samples/wrapper/wrapper.cpp b/samples/wrapper/wrapper.cpp
index acb90f8c3e..375bada337 100644
--- a/samples/wrapper/wrapper.cpp
+++ b/samples/wrapper/wrapper.cpp
@@ -587,7 +587,7 @@ int main(int argc, char** argv) {
             }
             poll_boinc_messages(task);
             double task_fraction_done = task.fraction_done();
-            double delta = task_fraction_done*task.weight;
+            double delta = task_fraction_done*task.weight/total_weight;
             send_status_message(task, frac_done+delta, checkpoint_cpu_time);
             if (task.has_checkpointed()) {
                 checkpoint_cpu_time = task.starting_cpu + task.cpu_time();