diff --git a/.travis.yml b/.travis.yml
index cd2a13510..f4c368f7e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,6 +13,8 @@ matrix:
             - gettext
             - libncurses5-dev
             - libpcre2-dev
+      env:
+          - CXXFLAGS="-g -O2 -Werror=address"
     - os: linux
       compiler: gcc
       addons:
@@ -23,7 +25,7 @@ matrix:
             - lib32ncurses5-dev
             - g++-multilib
       env:
-          - CXXFLAGS="-g -O2 -m32" CFLAGS="-g -m32"
+          - CXXFLAGS="-g -O2 -m32 -Werror=address" CFLAGS="-g -m32"
     - os: linux
       compiler: clang
       env: