diff --git a/api/boinc_api.C b/api/boinc_api.C
index ce9a7f13ce..f7cd9ad8ee 100644
--- a/api/boinc_api.C
+++ b/api/boinc_api.C
@@ -312,7 +312,7 @@ int boinc_worker_thread_cpu_time(double &cpu_t, double &ws_t) {
 }
 
 int boinc_thread_cpu_time(double& cpu, double& ws) {
-    return boinc_thread_cpu_time(cpu, ws);
+    return boinc_worker_thread_cpu_time(cpu, ws);
 }
 #endif
 #endif  // _WIN32
diff --git a/checkin_notes b/checkin_notes
index 5944ada06d..2711656579 100755
--- a/checkin_notes
+++ b/checkin_notes
@@ -7747,3 +7747,11 @@ Karl 2003-11-21
     client/translation
         langauge.ini.de
 
+Karl 2003-11-21
+    - fixed recursive boinc_thread_cpu_time typo bug that resulted in loss of
+      client app functionality (bug noticed by Nuno Ferreira
+      <nuno.ferreira@graycell.biz>)
+
+    api/
+        boinc_api.C
+