diff --git a/src/bin/pg_waldump/.gitignore b/src/bin/pg_waldump/.gitignore
index dc6705f5b29..ec51f41c767 100644
--- a/src/bin/pg_waldump/.gitignore
+++ b/src/bin/pg_waldump/.gitignore
@@ -15,6 +15,7 @@
 /nbtdesc.c
 /relmapdesc.c
 /replorigindesc.c
+/rmgrdesc_utils.c
 /seqdesc.c
 /smgrdesc.c
 /spgdesc.c