diff --git a/.travis.yml b/.travis.yml
index 1d19579..fc38046 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,4 @@
-language: cpp
+language: c
 compiler:
   - clang
   - gcc
@@ -16,3 +16,4 @@ script:
   - ../configure
   - make
   - make test
+  - src/dnscap -h
diff --git a/src/pcap-thread b/src/pcap-thread
index 9bfb541..a50f0b3 160000
--- a/src/pcap-thread
+++ b/src/pcap-thread
@@ -1 +1 @@
-Subproject commit 9bfb541da37870616d5a41fd2015be26e8bb7cfa
+Subproject commit a50f0b3db9df92cc62e3fe15d9faa5492ca7203c