diff --git a/.travis.yml b/.travis.yml
index 4319780..aaff3ec 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ before_install:
 
 script:
     - ./bootstrap
-    - ./configure
+    - ./configure "CFLAGS=-Werror"
     - echo Build using $(nproc) parallel jobs
     - make -j$(nproc)
     - make check
diff --git a/README.md b/README.md
index d0ef86c..a454236 100644
--- a/README.md
+++ b/README.md
@@ -66,7 +66,7 @@ $ sudo apt-get install libtool build-essential pkg-config autoconf doxygen
 
 ``` bash
 $ ./bootstrap
-$ ./configure
+$ ./configure "CFLAGS=-Werror"
 $ make
 ```