diff --git a/lib/isc/include/isc/Makefile.in b/lib/isc/include/isc/Makefile.in
index 29771aace7..ec339e2261 100644
--- a/lib/isc/include/isc/Makefile.in
+++ b/lib/isc/include/isc/Makefile.in
@@ -17,8 +17,8 @@ VERSION=@BIND9_VERSION@
 #
 HEADERS =	aes.h app.h assertions.h backtrace.h base32.h base64.h \
 		bind9.h boolean.h buffer.h bufferlist.h \
-		commandline.h counter.h crc64.h entropy.h error.h event.h \
-		eventclass.h file.h formatcheck.h fsaccess.h \
+		commandline.h counter.h crc64.h entropy.h errno.h error.h \
+		event.h eventclass.h file.h formatcheck.h fsaccess.h \
 		hash.h heap.h hex.h hmacmd5.h hmacsha.h ht.h httpd.h \
 		interfaceiter.h @ISC_IPV6_H@ iterated_hash.h \
 		json.h lang.h lex.h lfsr.h lib.h list.h log.h \