diff --git a/src/backend/utils/adt/pg_locale.c b/src/backend/utils/adt/pg_locale.c
index b81b9442d85..bf523c18249 100644
--- a/src/backend/utils/adt/pg_locale.c
+++ b/src/backend/utils/adt/pg_locale.c
@@ -1718,7 +1718,7 @@ get_collation_actual_version(char collprovider, const char *collcollate)
 							collcollate,
 							GetLastError())));
 		}
-		collversion = psprintf("%d.%d,%d.%d",
+		collversion = psprintf("%lu.%lu,%lu.%lu",
 							   (version.dwNLSVersion >> 8) & 0xFFFF,
 							   version.dwNLSVersion & 0xFF,
 							   (version.dwDefinedVersion >> 8) & 0xFFFF,