diff --git a/.travis.yml b/.travis.yml
index fcea720..30d5abb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,15 @@
 language: c
 
-install:
+before_install:
+    # update package list
     - sudo apt-get update -qq
+
+install:
+    # install build dependencies
     - sudo apt-get install -qq --no-install-recommends debhelper devscripts python python-debian quilt autotools-dev
 
 script:
+    # build the debian package
     - debuild -uc -us
 
 #notifications:
diff --git a/debian/source/options b/debian/source/options
new file mode 100644
index 0000000..b5bc9e7
--- /dev/null
+++ b/debian/source/options
@@ -0,0 +1 @@
+extend-diff-ignore = '(^|/)(\.travis\.yml|\.git|\.gitgnore|config\.sub|config\.guess)'