diff --git a/src/include/postmaster/postmaster.h b/src/include/postmaster/postmaster.h
index 25cc84a47f..f7072f55cf 100644
--- a/src/include/postmaster/postmaster.h
+++ b/src/include/postmaster/postmaster.h
@@ -15,7 +15,6 @@
 
 /* GUC options */
 extern bool EnableSSL;
-extern bool SilentMode;
 extern int	ReservedBackends;
 extern int	PostPortNumber;
 extern int	Unix_socket_permissions;