diff --git a/masks2d.scad b/masks2d.scad
index f36a5d5..75ffca5 100644
--- a/masks2d.scad
+++ b/masks2d.scad
@@ -232,8 +232,6 @@ function _inset_isect(inset,mask_angle,flat_top,excess,r,size) =
 //   mask2d_cove(r=10,inset=3,mask_angle=75);
 // Example(2D): Disabling flat_top=
 //   mask2d_cove(r=10, inset=3, flat_top=false, mask_angle=75);
-// Example(2D): 2D Angled Inset Cove Mask by Joint Length
-//   mask2d_cove(joint=10, inset=3, mask_angle=75);
 // Example(2D): Increasing the Excess
 //   mask2d_cove(r=10,inset=3,mask_angle=75, excess=2);
 // Example: Masking by Edge Attachment
@@ -633,6 +631,7 @@ module mask2d_teardrop(r, angle=45, mask_angle=90, excess=0.01, flat_top=true, d
     }
 }
 
+
 // Function&Module: mask2d_ogee()
 // Synopsis: Creates a 2D ogee mask shape.
 // SynTags: Geom, Path
diff --git a/scripts/check_for_tabs.sh b/scripts/check_for_tabs.sh
index 21b86d1..a075703 100755
--- a/scripts/check_for_tabs.sh
+++ b/scripts/check_for_tabs.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if grep -H -n '\t' *.scad ; then
+if grep -H -n -P '\t' *.scad ; then
     echo "Tabs found in source code." 2>&1
     exit 1
 fi