diff --git a/extensions/fablabchemnitz/input_stl.inx b/extensions/fablabchemnitz/input_stl.inx
index a0efbd9e..085dbb32 100644
--- a/extensions/fablabchemnitz/input_stl.inx
+++ b/extensions/fablabchemnitz/input_stl.inx
@@ -9,7 +9,7 @@
             <label appearance="header">Input</label>
             <param name="inputfile" type="path" gui-text="Input file" filetypes="obj,off,ply,stl" mode="file">/your/object/file.stl</param>
             <param name="max_num_faces" type="int" min="1" max="99999" gui-text="Maximum allowed faces" gui-description="If the STL file has too much detail it contains a large number of faces. This will make processing extremely slow. So we can limit it.">200</param>     
-            <param name="layer_height" type="string" min="0.001" max="99999.000" precision="3" gui-text="Layer height [mm]:">1.000</param>
+            <param name="layer_height" type="float" min="0.001" max="99999.000" precision="3" gui-text="Layer height [mm]:">1.000</param>
             <hbox>
                 <vbox>
                     <label appearance="header">Transforms</label>
@@ -21,8 +21,8 @@
                 <separator/>
                 <vbox>
                     <label appearance="header">Output</label>
-                    <param name="resizetoimport" type="bool" gui-text="Resize the canvas to the imported drawing's bounding box">true</param>
-                    <param name="extraborder" type="float" precision="3" gui-text="Add extra border around fitted canvas">0.0</param>
+                    <param name="resizetoimport" type="bool" gui-text="Resize canvas" gui-description="Resize the canvas to the imported drawing's bounding box">true</param>
+                    <param name="extraborder" type="float" precision="3" gui-text="Extra border" gui-description="Add extra border around fitted canvas">0.0</param>
                     <param name="extraborder_units" type="optiongroup" appearance="combo" gui-text="Border offset units">
                        <option value="mm">mm</option>
                        <option value="cm">cm</option>
diff --git a/extensions/fablabchemnitz/paperfold.inx b/extensions/fablabchemnitz/paperfold.inx
index 05d05af8..f8cdc0ab 100644
--- a/extensions/fablabchemnitz/paperfold.inx
+++ b/extensions/fablabchemnitz/paperfold.inx
@@ -20,8 +20,8 @@
                     <param name="importCoplanarEdges" type="bool" gui-text="Import coplanar edges">false</param>
                     <param name="experimentalWeights" type="bool" gui-text="Mess around with algorithm">false</param>
                     <param name="printStats" type="bool" gui-text="Show some unfold statistics">false</param>
-                    <param name="resizetoimport" type="bool" gui-text="Resize the canvas to the imported drawing's bounding box">true</param>
-                    <param name="extraborder" type="float" precision="3" gui-text="Add extra border around fitted canvas">0.0</param>
+                    <param name="resizetoimport" type="bool" gui-text="Resize canvas" gui-description="Resize the canvas to the imported drawing's bounding box">true</param>
+                    <param name="extraborder" type="float" precision="3" gui-text="Extra border" gui-description="Add extra border around fitted canvas">0.0</param>
                     <param name="extraborderUnits" type="optiongroup" appearance="combo" gui-text="Border offset units">
                        <option value="mm">mm</option>
                        <option value="cm">cm</option>