diff --git a/Tools/px4airframes/markdownout.py b/Tools/px4airframes/markdownout.py
index 3db2000ac3..e48f078c66 100644
--- a/Tools/px4airframes/markdownout.py
+++ b/Tools/px4airframes/markdownout.py
@@ -28,7 +28,7 @@ class MarkdownTablesOutput():
image_name = group.GetImageName()
result += '
\n'
if image_name != 'AirframeUnknown':
- result += '

\n' % (image_name)
+ result += '

\n' % (image_name)
# check if all outputs are equal for the group: if so, show them
# only once
diff --git a/Tools/px_process_airframes.py b/Tools/px_process_airframes.py
index 20f41739c6..4f3c74bea4 100755
--- a/Tools/px_process_airframes.py
+++ b/Tools/px_process_airframes.py
@@ -63,7 +63,7 @@ def main():
" (default FILENAME: airframes.xml)")
parser.add_argument("-m", "--markdown",
nargs='?',
- const="airframes.md",
+ const="airframe_reference.md",
metavar="FILENAME",
help="Create Markdown file"
" (default FILENAME: airframes_reference.md)")