diff --git a/moonscript/compile.lua b/moonscript/compile.lua
index ccb2e93..aaa42c2 100644
--- a/moonscript/compile.lua
+++ b/moonscript/compile.lua
@@ -415,8 +415,14 @@ do
       })
       return name
     end,
-    add = function(self, item)
-      self._lines:add(item)
+    add = function(self, item, pos)
+      do
+        local _with_0 = self._lines
+        _with_0:add(item)
+        if pos then
+          _with_0:mark_pos(pos)
+        end
+      end
       return item
     end,
     render = function(self, buffer)
diff --git a/moonscript/compile.moon b/moonscript/compile.moon
index ac6c463..af700e1 100644
--- a/moonscript/compile.moon
+++ b/moonscript/compile.moon
@@ -288,9 +288,11 @@ class Block
     @stm {"assign", {name}, {value}}
     name
 
-  -- add a line object
-  add: (item) =>
-    @_lines\add item
+  -- add something to the line buffer
+  add: (item, pos) =>
+    with @_lines
+      \add item
+      \mark_pos pos if pos
     item
 
   -- todo: pass in buffer as argument
diff --git a/moonscript/compile/statement.lua b/moonscript/compile/statement.lua
index 7b6ccb0..2d2a80c 100644
--- a/moonscript/compile/statement.lua
+++ b/moonscript/compile/statement.lua
@@ -78,7 +78,7 @@ return {
         _with_0:append(declare)
       else
         if #undeclared > 0 then
-          self:add(declare)
+          self:add(declare, node[-1])
         end
         _with_0:append_list((function()
           local _accum_0 = { }
diff --git a/moonscript/compile/statement.moon b/moonscript/compile/statement.moon
index 9d0f43a..e5c5740 100644
--- a/moonscript/compile/statement.moon
+++ b/moonscript/compile/statement.moon
@@ -43,7 +43,7 @@ import concat, insert from table
       if #undeclared == #names and not has_fndef
         \append declare
       else
-        @add declare if #undeclared > 0
+        @add declare, node[-1] if #undeclared > 0
         \append_list [@value name for name in *names], ", "
 
       \append " = "