diff --git a/.travis.yml b/.travis.yml
index 99de31a9..8884e9e0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -67,6 +67,10 @@ matrix:
     - env: CLANG_VERSION=6.0 BUILD_TYPE=Debug CPP=11 ASAN=On
       os: linux
       addons: *clang6
+      
+    - env: CLANG_VERSION=6.0 BUILD_TYPE=Release CPP=11 ASAN=On
+      os: linux
+      addons: *clang6
 
 before_install:
   - if [ -n "$GCC_VERSION" ]; then export CXX="g++-${GCC_VERSION}" CC="gcc-${GCC_VERSION}"; fi