diff --git a/tools/travis-ci.sh b/tools/travis-ci.sh
index a53fc37..7fbcfc6 100644
--- a/tools/travis-ci.sh
+++ b/tools/travis-ci.sh
@@ -47,8 +47,9 @@ function renew_build {
 }
 
 if [[ $CXX == *"clang"* ]]; then
-  LSAN_OPTIONS=verbosity=1:log_threads=1
-  ASAN_OPTIONS=verbosity=1:abort_on_error=1
+  LSAN_OPTIONS=verbosity=1:log_threads=1:abort_on_error=1
+  ASAN_OPTIONS=verbosity=1:log_threads=1:abort_on_error=1
+  UBSAN_OPTIONS=print_stacktrace=1:symbolize=1:halt_on_error=1:print_summary=1
 
   # Build the test suite with various sanitizers:
   if [ $WITH_AWAIT != "ON" ]; then