diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a420e2a6e7..f26c9438ff 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2019-03-05  Tom Tromey  <tromey@adacore.com>
+
+	* macroexp.c (struct macro_buffer) <release>: Add
+	ATTRIBUTE_UNUSED_RESULT.
+
 2019-03-05  Tom Tromey  <tromey@adacore.com>
 
 	* nat/linux-btrace.c (linux_enable_bts, linux_enable_pt): Update.
diff --git a/gdb/macroexp.c b/gdb/macroexp.c
index 0e8e85cdf2..a588cc836f 100644
--- a/gdb/macroexp.c
+++ b/gdb/macroexp.c
@@ -130,7 +130,7 @@ struct macro_buffer
 
   /* Release the text of the buffer to the caller, which is now
      responsible for freeing it.  */
-  char *release ()
+  ATTRIBUTE_UNUSED_RESULT char *release ()
   {
     gdb_assert (! shared);
     gdb_assert (size);