diff --git a/src/interfaces/libpq/.gitignore b/src/interfaces/libpq/.gitignore
index ba0d38592a1..1784ce11af1 100644
--- a/src/interfaces/libpq/.gitignore
+++ b/src/interfaces/libpq/.gitignore
@@ -13,6 +13,7 @@
 /strlcpy.c
 /thread.c
 /win32error.c
+/win32setlocale.c
 /pgsleep.c
 /md5.c
 /ip.c