--- a/examples/csma-one-subnet.cc	Mon Mar 31 15:19:08 2008 -0700
+++ b/examples/csma-one-subnet.cc	Mon Mar 31 15:19:11 2008 -0700
@@ -131,7 +131,7 @@
 // and can be read by the "tcpdump -r" command (use "-tt" option to
 // display timestamps correctly)
 //
-  CsmaHelper::EnablePcap ("csma-one-subnet.pcap");
+  CsmaHelper::EnablePcap ("csma-one-subnet");
 //
 // Now, do the actual simulation.
 //