diff --git a/contrib/pg_upgrade/pg_upgrade.c b/contrib/pg_upgrade/pg_upgrade.c
index 89e427503a7..35a0f4304d1 100644
--- a/contrib/pg_upgrade/pg_upgrade.c
+++ b/contrib/pg_upgrade/pg_upgrade.c
@@ -289,7 +289,7 @@ CreateRestrictedProcess(char *cmd, PROCESS_INFORMATION *processInfo, const char
 }
 #endif
 
-void
+static void
 get_restricted_token(const char *progname)
 {
 #ifdef WIN32
diff --git a/src/bin/pg_resetxlog/pg_resetxlog.c b/src/bin/pg_resetxlog/pg_resetxlog.c
index 24de764f5c9..f0296dbcd90 100644
--- a/src/bin/pg_resetxlog/pg_resetxlog.c
+++ b/src/bin/pg_resetxlog/pg_resetxlog.c
@@ -1155,7 +1155,7 @@ CreateRestrictedProcess(char *cmd, PROCESS_INFORMATION *processInfo, const char
 }
 #endif
 
-void
+static void
 get_restricted_token(const char *progname)
 {
 #ifdef WIN32