diff --git a/src/bin/pg_combinebackup/nls.mk b/src/bin/pg_combinebackup/nls.mk
index 84db8fa9571..9f1f567fb67 100644
--- a/src/bin/pg_combinebackup/nls.mk
+++ b/src/bin/pg_combinebackup/nls.mk
@@ -6,6 +6,12 @@ GETTEXT_FILES    = $(FRONTEND_COMMON_GETTEXT_FILES) \
                    load_manifest.c \
                    pg_combinebackup.c \
                    reconstruct.c \
-                   write_manifest.c
-GETTEXT_TRIGGERS = $(FRONTEND_COMMON_GETTEXT_TRIGGERS)
-GETTEXT_FLAGS    = $(FRONTEND_COMMON_GETTEXT_FLAGS)
+                   write_manifest.c \
+                   ../../common/fe_memutils.c \
+                   ../../common/jsonapi.c \
+                   ../../common/parse_manifest.c
+GETTEXT_TRIGGERS = $(FRONTEND_COMMON_GETTEXT_TRIGGERS) \
+                   json_manifest_parse_failure:2 \
+                   error_cb:2
+GETTEXT_FLAGS    = $(FRONTEND_COMMON_GETTEXT_FLAGS) \
+                   error_cb:2:c-format