diff --git a/Python-3.3.0/Python/ast.c b/python3-modified/Python/ast.c
index fc6c565..11857a3 100644
--- a/Python-3.3.0/Python/ast.c
+++ b/python3-modified/Python/ast.c
@@ -1173,7 +1173,7 @@ ast_for_arg(struct compiling *c, const node *n)
             return NULL;
     }
 
-    return arg(name, annotation, c->c_arena);
+    return arg(name, annotation, n->n_lineno, n->n_col_offset, c->c_arena);
 }
 
 /* returns -1 if failed to handle keyword only arguments
@@ -1228,7 +1228,7 @@ handle_keywordonly_args(struct compiling *c, const node *n, int start,
                     goto error;
                 if (forbidden_name(argname, ch, 0))
                     goto error;
-                arg = arg(argname, annotation, c->c_arena);
+                arg = arg(argname, annotation, ch->n_lineno, ch->n_col_offset, c->c_arena);
                 if (!arg)
                     goto error;
                 asdl_seq_SET(kwonlyargs, j++, arg);
@@ -1267,6 +1267,7 @@ ast_for_arguments(struct compiling *c, const node *n)
        vfpdef: NAME
     */
     int i, j, k, nposargs = 0, nkwonlyargs = 0;
+    int vararg_lineno = 0, vararg_col_offset = 0, kwarg_lineno = 0, kwarg_col_offset = 0;
     int nposdefaults = 0, found_default = 0;
     asdl_seq *posargs, *posdefaults, *kwonlyargs, *kwdefaults;
     identifier vararg = NULL, kwarg = NULL;
@@ -1277,7 +1278,8 @@ ast_for_arguments(struct compiling *c, const node *n)
     if (TYPE(n) == parameters) {
         if (NCH(n) == 2) /* () as argument list */
             return arguments(NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-                             NULL, c->c_arena);
+                             NULL, vararg_lineno, vararg_col_offset,
+                             kwarg_lineno, kwarg_col_offset, c->c_arena);
         n = CHILD(n, 1);
     }
     assert(TYPE(n) == typedargslist || TYPE(n) == varargslist);
@@ -1386,6 +1388,8 @@ ast_for_arguments(struct compiling *c, const node *n)
                     vararg = NEW_IDENTIFIER(CHILD(ch, 0));
                     if (!vararg)
                         return NULL;
+                    vararg_lineno = CHILD(ch, 0)->n_lineno;
+                    vararg_col_offset = CHILD(ch, 0)->n_col_offset;
                     if (forbidden_name(vararg, CHILD(ch, 0), 0))
                         return NULL;
                     if (NCH(ch) > 1) {
@@ -1411,6 +1415,8 @@ ast_for_arguments(struct compiling *c, const node *n)
                 kwarg = NEW_IDENTIFIER(CHILD(ch, 0));
                 if (!kwarg)
                     return NULL;
+                kwarg_lineno = CHILD(ch, 0)->n_lineno;
+                kwarg_col_offset = CHILD(ch, 0)->n_col_offset;
                 if (NCH(ch) > 1) {
                     /* there is an annotation on the kwarg */
                     kwargannotation = ast_for_expr(c, CHILD(ch, 2));
@@ -1429,7 +1435,9 @@ ast_for_arguments(struct compiling *c, const node *n)
         }
     }
     return arguments(posargs, vararg, varargannotation, kwonlyargs, kwarg,
-                    kwargannotation, posdefaults, kwdefaults, c->c_arena);
+                    kwargannotation, posdefaults, kwdefaults,
+                    vararg_lineno, vararg_col_offset,
+                    kwarg_lineno, kwarg_col_offset, c->c_arena);
 }
 
 static expr_ty
@@ -1595,7 +1603,7 @@ ast_for_lambdef(struct compiling *c, const node *n)
 
     if (NCH(n) == 3) {
         args = arguments(NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-                         NULL, c->c_arena);
+                         NULL, 0, 0, 0, 0, c->c_arena);
         if (!args)
             return NULL;
         expression = ast_for_expr(c, CHILD(n, 2));
@@ -2237,8 +2245,6 @@ ast_for_power(struct compiling *c, const node *n)
         tmp = ast_for_trailer(c, ch, e);
         if (!tmp)
             return NULL;
-        tmp->lineno = e->lineno;
-        tmp->col_offset = e->col_offset;
         e = tmp;
     }
     if (TYPE(CHILD(n, NCH(n) - 1)) == factor) {
diff --git a/Python-3.3.0/Parser/Python.asdl b/python3-modified/Parser/Python.asdl
index 6b06dec..8f3d89f 100644
--- a/Python-3.3.0/Parser/Python.asdl
+++ b/python3-modified/Parser/Python.asdl
@@ -106,8 +106,11 @@ module Python
     arguments = (arg* args, identifier? vararg, expr? varargannotation,
                      arg* kwonlyargs, identifier? kwarg,
                      expr? kwargannotation, expr* defaults,
-                     expr* kw_defaults)
-    arg = (identifier arg, expr? annotation)
+                     expr* kw_defaults,
+                     int vararg_lineno, int vararg_col_offset,
+                     int kwarg_lineno, int kwarg_col_offset)
+    arg = (identifier arg, expr? annotation,
+           int lineno, int col_offset)
 
     -- keyword arguments supplied to call
     keyword = (identifier arg, expr value)