diff --git a/onnxconverter_common/perfstats.py b/onnxconverter_common/perfstats.py
index 62361aa..cc04aa5 100644
--- a/onnxconverter_common/perfstats.py
+++ b/onnxconverter_common/perfstats.py
@@ -9,7 +9,7 @@
 Script is standalone and can be downloaded and run as prefstats.py
 
 Ex:
-    python -m onnxconvert_common.perfstats -t -l 5 trace.json   # List durations by optype
+    python -m onnxconverter_common.perfstats -t -l 5 trace.json   # List durations by optype
     (or python perfstats.py -t -l 5 trace.json)
 
 Result:
@@ -48,11 +48,11 @@
 _HELP_TEXT = """
 Usage Examples:
 
-python -m onnxconvert_common.perfstats -t trace.json   # List results by type
-python -m onnxconvert_common.perfstats -n -l 10 trace.json   # List top 10 nodes
-python -m onnxconvert_common.perfstats -n trace.json -q t=Conv   # List conv nodes
-python -m onnxconvert_common.perfstats -n trace.json -q t!=Conv   # List non-conv nodes
-python -m onnxconvert_common.perfstats -n trace.json -q t=Conv;n!=NAME   # List conv nodes except NAME
+python -m onnxconverter_common.perfstats -t trace.json   # List results by type
+python -m onnxconverter_common.perfstats -n -l 10 trace.json   # List top 10 nodes
+python -m onnxconverter_common.perfstats -n trace.json -q t=Conv   # List conv nodes
+python -m onnxconverter_common.perfstats -n trace.json -q t!=Conv   # List non-conv nodes
+python -m onnxconverter_common.perfstats -n trace.json -q t=Conv;n!=NAME   # List conv nodes except NAME
 """