diff --git a/travis/distcheck.sh b/travis/distcheck.sh
index 8d195a86..89333628 100755
--- a/travis/distcheck.sh
+++ b/travis/distcheck.sh
@@ -10,7 +10,7 @@ if [ "$BUILD_TYPE" = "normal" -a "$TRAVIS_OS_NAME" = "linux" ]; then
 
     cd test
     make
-    $TEST_WRAP ./arestest -v $TEST_FILTER
+    $TEST_WRAP ./arestest -4 -v $TEST_FILTER
     cd ..
 
     cd ..
diff --git a/travis/test.sh b/travis/test.sh
index 7eaff23b..b3bddaa7 100755
--- a/travis/test.sh
+++ b/travis/test.sh
@@ -6,7 +6,7 @@ if [ "$BUILD_TYPE" != "ios" -a "$BUILD_TYPE" != "analyse" -a "$BUILD_TYPE" != "c
     $TEST_WRAP ./ahost www.google.com
     cd test
     make
-    $TEST_WRAP ./arestest -v $TEST_FILTER
+    $TEST_WRAP ./arestest -4 -v $TEST_FILTER
     ./fuzzcheck.sh
     ./dnsdump  fuzzinput/answer_a fuzzinput/answer_aaaa
     cd ..