diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 129d85d903..58fa44d744 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2019-08-15  Tom Tromey  <tom@tromey.com>
+
+	* tui/tui-stack.c (tui_make_status_line): Use string constructor.
+
 2019-08-15  Tom Tromey  <tom@tromey.com>
 
 	* tui/tui-wingeneral.c: Include tui-stack.h.
diff --git a/gdb/tui/tui-stack.c b/gdb/tui/tui-stack.c
index c67ac1ba54..1d7491dff9 100644
--- a/gdb/tui/tui-stack.c
+++ b/gdb/tui/tui-stack.c
@@ -128,11 +128,9 @@ tui_make_status_line (struct tui_locator_window *loc)
     line_width = MIN_LINE_WIDTH;
 
   /* Translate PC address.  */
-  string_file pc_out;
-
-  fputs_filtered (loc->gdbarch? paddress (loc->gdbarch, loc->addr) : "??",
-		  &pc_out);
-
+  std::string pc_out (loc->gdbarch
+		      ? paddress (loc->gdbarch, loc->addr)
+		      : "??");
   const char *pc_buf = pc_out.c_str ();
   int pc_width = pc_out.size ();