diff --git a/src/bin/pg_combinebackup/pg_combinebackup.c b/src/bin/pg_combinebackup/pg_combinebackup.c
index f4a1f49953..20bb1ab919 100644
--- a/src/bin/pg_combinebackup/pg_combinebackup.c
+++ b/src/bin/pg_combinebackup/pg_combinebackup.c
@@ -212,7 +212,7 @@ main(int argc, char *argv[])
 
 	if (optind >= argc)
 	{
-		pg_log_error("%s: no input directories specified", progname);
+		pg_log_error("no input directories specified");
 		pg_log_error_hint("Try \"%s --help\" for more information.", progname);
 		exit(1);
 	}
diff --git a/src/bin/pg_walsummary/pg_walsummary.c b/src/bin/pg_walsummary/pg_walsummary.c
index ffe183f0ee..93f6e6d408 100644
--- a/src/bin/pg_walsummary/pg_walsummary.c
+++ b/src/bin/pg_walsummary/pg_walsummary.c
@@ -91,7 +91,7 @@ main(int argc, char *argv[])
 
 	if (optind >= argc)
 	{
-		pg_log_error("%s: no input files specified", progname);
+		pg_log_error("no input files specified");
 		pg_log_error_hint("Try \"%s --help\" for more information.", progname);
 		exit(1);
 	}