diff --git a/buildscripts/makealldists.py b/buildscripts/makealldists.py
index 4099c1ab591..149d1e51132 100755
--- a/buildscripts/makealldists.py
+++ b/buildscripts/makealldists.py
@@ -144,7 +144,7 @@ def wait(procs, winfh, losefh, winners, losers):
     # emit a blank line, so that the buildbot doesn't kill us off
     # while waiting for output.
     sys.stdout.write('.')
-    sys.stdout.flush
+    sys.stdout.flush()
     try:
         (pid, stat) = os.wait()
     except OSError, err: