diff --git a/luamml-amsmath.lua b/luamml-amsmath.lua
index 1175481..d4f24aa 100644
--- a/luamml-amsmath.lua
+++ b/luamml-amsmath.lua
@@ -57,7 +57,7 @@ do
     mml_table.columnalign = kind == 'gathered' and 'center' or string.rep('right left', columns, ' ')
     local spacing = {}
     for n in node.traverse_id(node.id'glue', tex.lists.align_head) do
-      spacing[#spacing+1] = n.width == 0 and '0' or string.format('%.3f', n.width/65781.76)
+      spacing[#spacing+1] = n.width == 0 and '0' or string.format('%.3fpt', n.width/65781.76)
     end
     mml_table.columnspacing = #spacing > 3 and table.concat(spacing, ' ', 2, #spacing-2) or nil
     saved = mml_table
diff --git a/luamml-patches-amsmath.sty b/luamml-patches-amsmath.sty
index f25da9b..df40dab 100644
--- a/luamml-patches-amsmath.sty
+++ b/luamml-patches-amsmath.sty
@@ -16,7 +16,7 @@
   \fi
   \savecolumn@ % Assumption: called inside a group
   \luamml_annotate:en {
-    nucleus = true, core = false
+    core = false
   } {
     \alignedspace@left
   }
@@ -69,7 +69,7 @@
     \nonmatherr@ { \begin {gathered} }
   \fi
   \luamml_annotate:en {
-    nucleus = true, core = false
+    core = false
   } {
     \alignedspace@left
   }