diff --git a/Makefile.config.in b/Makefile.config.in
index 85049bc8a..56e555a7b 100644
--- a/Makefile.config.in
+++ b/Makefile.config.in
@@ -43,6 +43,7 @@ CATALOGS = @CATALOGS@
 CATOBJEXT = @CATOBJEXT@
 CC = @CC@
 CONFDIR = @CONFDIR@
+CONFIG_NLS = @CONFIG_NLS@
 DATADIRNAME = @DATADIRNAME@
 GENCAT = @GENCAT@
 GLIBC21 = @GLIBC21@