diff --git a/.travis.yml b/.travis.yml
index 794e6e21..cee7d8e0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,7 +38,7 @@ install:
 #  Use /dev/urandom when /dev/random is accessed, because travis doesn't have enough entropy
 - sudo cp -a /dev/urandom /dev/random
 script:
-- cmake .. -DBUILD_TESTING=on
+- cmake .. -DBUILD_TESTING=on -DCMAKE_BUILD_TYPE=Debug
 - make -j$NUMCORES
 - ./test/cpp-utils/cpp-utils-test
 - ./run_with_fuse.sh ./test/fspp/fspp-test