Missed in commit 04c0362979a832bc0044d932cd1b705cef7b0d5b.
@@ -1,6 +1,7 @@
# This is the list of all source files with translatable strings.
lib/dpkg/ar.c
+lib/dpkg/arch.c
lib/dpkg/buffer.c
lib/dpkg/cleanup.c
lib/dpkg/command.c