diff --git a/configure.in b/configure.in
index bac61d0a6..ed57004d9 100644
--- a/configure.in
+++ b/configure.in
@@ -634,6 +634,7 @@ AC_BROKEN([					\
 	strnlen					\
 	strptime				\
 	strsep					\
+	strsep_copy				\
 	strtok_r				\
 	strupr					\
 	swab					\