allow fully default flags for distcheck
diff --git a/.travis.yml b/.travis.yml
index 0ca934e..205fa83 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@
   - clang
 env:
   - TASK=check CONFIG_FLAGS="--enable-Werror --enable-test-Werror --enable-code-coverage"
-  - TASK=distcheck CONFIG_FLAGS="--enable-Werror --enable-test-Werror" DISTCHECK_CONFIGURE_FLAGS=$CONFIG_FLAGS
+  - TASK=distcheck
 before_install:
   - sudo apt-get install -y gcc-multilib lcov libasan*
   - gem install coveralls-lcov