1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 082281a46..e188bc900 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1001,6 +1001,7 @@ AC_CHECK_HEADERS(
         arpa/inet.h \
         net/if.h \
         netinet/in.h \
+        netinet/tcp.h \
         netdb.h \
         sys/sockio.h \
         sys/stat.h \