diff --git a/reviewers.py b/reviewers.py
index a7f92c0..1510829 100755
--- a/reviewers.py
+++ b/reviewers.py
@@ -240,7 +240,9 @@ def main(argv=None):
             file_obj.write('Total reviewers: %d\n' % len(reviewers))
             file_obj.write('Total reviews by core team: %d (%.1f/day)\n' % (
                 core_total, float(core_total) / options.days))
-            file_obj.write('Core team size: %d\n' % len(project['core-team']))
+            core_team_size = sum([len(project['core-team'])
+                                  for project in projects])
+            file_obj.write('Core team size: %d\n' % core_team_size)
             file_obj.write(
                 'New patch sets in the last %d days: %d (%.1f/day)\n'
                 % (options.days, patches_created,