diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index b07e744b0b..5e83034746 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2016-11-08  Pedro Alves  <palves@redhat.com>
+
+	* c-exp.y (OPERATOR NEW): Adjust to use ui_file_as_string and
+	std::string.
+
 2016-11-08  Pedro Alves  <palves@redhat.com>
 
 	* c-lang.h (c_compute_program): Now returns std::string.
diff --git a/gdb/c-exp.y b/gdb/c-exp.y
index 29f672f54c..f65e3a19e7 100644
--- a/gdb/c-exp.y
+++ b/gdb/c-exp.y
@@ -1555,16 +1555,13 @@ oper:	OPERATOR NEW
 	|	OPERATOR OBJC_LBRAC ']'
 			{ $$ = operator_stoken ("[]"); }
 	|	OPERATOR conversion_type_id
-			{ char *name;
-			  long length;
-			  struct ui_file *buf = mem_fileopen ();
+			{ struct ui_file *buf = mem_fileopen ();
 
 			  c_print_type ($2, NULL, buf, -1, 0,
 					&type_print_raw_options);
-			  name = ui_file_xstrdup (buf, &length);
+			  std::string name = ui_file_as_string (buf);
 			  ui_file_delete (buf);
-			  $$ = operator_stoken (name);
-			  free (name);
+			  $$ = operator_stoken (name.c_str ());
 			}
 	;