diff --git a/.travis.yml b/.travis.yml
index f26c944..8c29fe5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,7 +21,7 @@ before_install:
   - sudo apt-get install -qq cmake valgrind
   - sudo apt-get --no-install-recommends install doxygen # Don't install LaTeX stuffs
   - if [ "$ARCH" = "x86" ]; then sudo apt-get install -qq g++-multilib libc6-dbg:i386; fi
-  - if [ "$CC" = "gcc" ]; then sudo pip install cpp-coveralls; export GCOV_FLAGS='--coverage'; fi
+  - if [ "$CC" = "gcc" ] && [ "CONF" = "debug" ]; then sudo pip install cpp-coveralls; export GCOV_FLAGS='--coverage'; fi
 
 install: true