variable name typo
diff --git a/examples/bitehist.py b/examples/bitehist.py
index 47cde3b..0ae7c9c 100755
--- a/examples/bitehist.py
+++ b/examples/bitehist.py
@@ -28,4 +28,4 @@
 except KeyboardInterrupt:
 	print
 
-b["dist"].print_log2_hist()
+b["dist"].print_log2_hist("kbytes")
diff --git a/examples/bitehist_example.txt b/examples/bitehist_example.txt
index a12e10f..1122131 100644
--- a/examples/bitehist_example.txt
+++ b/examples/bitehist_example.txt
@@ -6,7 +6,7 @@
 # ./bitehist.py 
 Tracing... Hit Ctrl-C to end.
 ^C
-     value           : count     distribution
+     kbytes          : count     distribution
        0 -> 1        : 3        |                                      |
        2 -> 3        : 0        |                                      |
        4 -> 7        : 211      |**********                            |
diff --git a/tools/opensnoop b/tools/opensnoop
index 8b1a5be..3746b35 100755
--- a/tools/opensnoop
+++ b/tools/opensnoop
@@ -89,7 +89,7 @@
 # format output
 while 1:
 	(task, pid, cpu, flags, ts, msg) = b.trace_fields()
-	(filenamp, ret_s) = msg.split(" ")
+	(filename, ret_s) = msg.split(" ")
 
 	ret = int(ret_s)
 	if (args.failed and (ret >= 0)):
@@ -106,4 +106,4 @@
 		if start_ts == 0:
 			start_ts = ts
 		print("%-14.9f" % (ts - start_ts), end="")
-	print("%-6d %-16s %4s %3s %s" % (pid, task, fd_s, err, filenamp))
+	print("%-6d %-16s %4s %3s %s" % (pid, task, fd_s, err, filename))