diff --git a/master.cfg b/master.cfg
index fb76cbe..84a1955 100644
--- a/master.cfg
+++ b/master.cfg
@@ -318,6 +318,7 @@ send to the gdb-testers mailing list."""
                 text += "============================\n"
                 text += log.getText ()
                 text += "============================\n"
+                subj = "*** COMPILATION FAILED *** " + subj
                 report_build_breakage = True
                 break
             elif n == 'compile gdb':
@@ -333,6 +334,7 @@ send to the gdb-testers mailing list."""
                 else:
                     text += ct
                 text += "============================\n"
+                subj = "*** COMPILATION FAILED *** " + subj
                 report_build_breakage = True
                 break
             elif n == 'make tags':