diff --git a/extensions/fablabchemnitz/export_selection_as/export_selection_as.inx b/extensions/fablabchemnitz/export_selection_as/export_selection_as.inx
index 82a6070e..be0f65e2 100644
--- a/extensions/fablabchemnitz/export_selection_as/export_selection_as.inx
+++ b/extensions/fablabchemnitz/export_selection_as/export_selection_as.inx
@@ -14,7 +14,7 @@
             <param name="export_pdf" type="bool" gui-text="Export as PDF 1.5">false</param>
             <param name="export_png" type="bool" gui-text="Export as PNG">false</param>
             <param name="png_dpi" type="float" min="1" max="2400" precision="3" gui-text="PNG DPI (applies for export and replace)" gui-description="default is 96">96</param>
-            <param name="replace_by_png" type="bool" gui-text="Replace by PNG">false</param>
+            <param name="replace_by_png" type="bool" gui-text="Replace by PNG" gui-description="Please convert strokes to paths to keep exact size and prevent cutoffs!">false</param>
             <param name="newwindow" type="bool" gui-text="Open file in new Inkscape instance">false</param>
             <label>Note: If svg/dxf/pdf already existed before, they might get accidently deleted or overwritten. Please take care!</label>
         </page>
diff --git a/extensions/fablabchemnitz/export_selection_as/export_selection_as.py b/extensions/fablabchemnitz/export_selection_as/export_selection_as.py
index d8baaa39..92cb76bc 100644
--- a/extensions/fablabchemnitz/export_selection_as/export_selection_as.py
+++ b/extensions/fablabchemnitz/export_selection_as/export_selection_as.py
@@ -262,7 +262,8 @@ class ExportObject(inkex.EffectExtension):
             imgReplacement.attrib['id'] = firstId
             imgReplacement.attrib['{http://www.w3.org/1999/xlink}href'] = "data:image/png;base64,{}".format(base64_str)
             parent.append(imgReplacement)
-            del parent.attrib['transform'] #remove transform
+            if parent.attrib.has_key('transform'):
+                del parent.attrib['transform'] #remove transform
 
                 
     def create_document(self):