diff --git a/.travis.yml b/.travis.yml
index c239a52..870b80d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -45,8 +45,8 @@ compiler:
 
 before_install:
   - 'if [ "$TRAVIS_OS_NAME" = "osx" ] && [ "$CC" == "gcc" ] ; then CC=gcc-4.9; fi'
-  - export CFLAGS="-fsanitize=address"
-  - export LDFLAGS="-fsanitize=address"
+  - export CFLAGS="-fsanitize=address -O1 -g -fno-omit-frame-pointer"
+  - export LDFLAGS="-fsanitize=address -g"
 
 script:
   - 'cd $TRAVIS_BUILD_DIR && cd $PROJECT'