diff --git a/.travis.yml b/.travis.yml
index 525f8bc..f69ff44 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,7 +15,7 @@ addons:
 
 before_script:
   - cmake source/compiler -DCMAKE_BUILD_TYPE=RelWithDebInfo
-                          -DCMAKE_C_FLAGS=-m32
+                          -DCMAKE_C_FLAGS="-m32 -Werror"
                           -DCPACK_GENERATOR="TGZ;ZIP"
 
 script: