diff --git a/src/mesh/build.js b/src/mesh/build.js
index 4bcea7f6..28389dab 100644
--- a/src/mesh/build.js
+++ b/src/mesh/build.js
@@ -277,7 +277,7 @@ function ui_build() {
             h.div({ _: "edit", class: "head" }),
             // h.div({ class: "vsep" }),
             h.button({ _: 'duplicate', onclick: tool.duplicate }),
-            h.button({ _: '(re)group', onclick: tool.regroup }),
+            h.button({ _: 'regroup', onclick: tool.regroup }),
             h.button({ _: 'merge', onclick: tool.merge }),
             h.button({ _: 'mirror', onclick: tool.mirror }),
             h.button({ _: 'split', onclick: call.edit_split }),
diff --git a/web/kiri/lang/en.js b/web/kiri/lang/en.js
index 5fc7b0c8..87ec8a73 100644
--- a/web/kiri/lang/en.js
+++ b/web/kiri/lang/en.js
@@ -406,7 +406,7 @@ kiri.lang['en-us'] = {
 
     // LASER SLICING
     ls_offs_s:      "offset",
-    ls_offs_l:      ["adjust for beam width","in millimeters"],
+    ls_offs_l:      ["adjust for beam width","also known as kerf","in millimeters"],
     ls_lahi_s:      "height",
     ls_lahi_l:      ["layer height","in millimeters","0 = auto/detect"],
     ls_lahm_s:      "min",