diff --git a/src/bin/pg_resetwal/pg_resetwal.c b/src/bin/pg_resetwal/pg_resetwal.c
index 5d54a7116a9..6cb2bf47568 100644
--- a/src/bin/pg_resetwal/pg_resetwal.c
+++ b/src/bin/pg_resetwal/pg_resetwal.c
@@ -1043,6 +1043,8 @@ KillExistingArchiveStatus(void)
 
 	if (closedir(xldir))
 		pg_fatal("could not close directory \"%s\": %m", ARCHSTATDIR);
+
+#undef ARCHSTATDIR
 }
 
 /*
@@ -1077,7 +1079,10 @@ KillExistingWALSummaries(void)
 		pg_fatal("could not read directory \"%s\": %m", WALSUMMARYDIR);
 
 	if (closedir(xldir))
-		pg_fatal("could not close directory \"%s\": %m", ARCHSTATDIR);
+		pg_fatal("could not close directory \"%s\": %m", WALSUMMARYDIR);
+
+#undef WALSUMMARY_NHEXCHARS
+#undef WALSUMMARYDIR
 }
 
 /*