diff --git a/api/boinc_api.cpp b/api/boinc_api.cpp
index ac62d81a9c..3931c3f92d 100644
--- a/api/boinc_api.cpp
+++ b/api/boinc_api.cpp
@@ -500,6 +500,7 @@ int boinc_temporary_exit(int delay) {
 //
 void boinc_exit(int status) {
     int retval;
+    char buf[256];
 
     if (options.backwards_compatible_graphics) {
         graphics_cleanup();
@@ -509,7 +510,6 @@ void boinc_exit(int status) {
         retval = file_lock.unlock(LOCKFILE);
         if (retval) {
 #ifdef _WIN32
-            char buf[256];
             windows_error_string(buf, 256);
             fprintf(stderr,
                 "%s Can't unlock lockfile (%d): %s\n",
diff --git a/checkin_notes b/checkin_notes
index 564e541130..1c6197c9d7 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -4528,3 +4528,9 @@ Charlie 23 Jun 2010
      mac_build/
         boinc.xcodeproj/
             project.pbxproj
+
+David  23 Jun 2010
+    - API: compile fix
+
+    api/
+        boinc_api.cpp