diff --git a/examples/dagrt-fusion.py b/examples/dagrt-fusion.py
index 40870293a067bf23ab8225164bc8ccd8b8c6b305..e188438fb4dc54ee41a59607b32ea64a2852009e 100755
--- a/examples/dagrt-fusion.py
+++ b/examples/dagrt-fusion.py
@@ -72,6 +72,7 @@ OUT_DIR = os.environ.get("OUT_DIR", ".")
 def open_output_file(filename):
     if not PAPER_OUTPUT:
         yield sys.stdout
+        sys.stdout.flush()
     else:
         try:
             outfile = open(os.path.join(OUT_DIR, filename), "w")