diff --git a/.travis.yml b/.travis.yml
index beb81d10968..7f012a505b2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -41,7 +41,7 @@ env:
   
 script:
   - autoreconf -i
-  - export CFLAGS='-std=c99  -fsanitize=address -fno-omit-frame-pointer'
+  - export CFLAGS='-std=c99  -fsanitize=address -fno-omit-frame-pointer -Werror'
   - export FFLAGS='-fsanitize=address -fno-omit-frame-pointer'
   - export FCFLAGS='-fsanitize=address -fno-omit-frame-pointer'
   - export DISTCHECK_CONFIGURE_FLAGS='--enable-fortran'