diff --git a/.gitignore b/.gitignore
index 33b8929d5..68659a80b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,38 +1,7 @@
-*.ami
-*.la
-*.lo
-*.m4
 *.pot
 package/*.bz2
-stamp-h*
-aclocal.m4
-autodocs-cc.ami
-autodocs-cc-base.ami
-autodocs-cc-off.ami
-autodocs-ycp.ami
-autom4te.cache
-config.cache
-config.guess
-config.h
-config.h.in
-config.log
-config.status
-config.sub
-configure
-configure.ac
 /coverage/
 /doc/
-install-sh
-libtool
-ltconfig
-ltmain.sh
-Makefile
-/Makefile.am
-Makefile.am.common
-Makefile.in
-missing
-mkinstalldirs
-pluglib-bindings.ami
 /nbproject/
 test-driver
 .yardoc/
diff --git a/.spell.yml b/.spell.yml
new file mode 100644
index 000000000..90bc54c94
--- /dev/null
+++ b/.spell.yml
@@ -0,0 +1,13 @@
+# This is the repository specific custom dictionary
+#
+# Write the words in alphabetical order, one word per line.
+# If an unknown word is generic put it into the global dictionary
+# in yast-rake in lib/tasks/spell.yml file.
+
+---
+ignore:
+  - "doc/**/*"
+  - "coverage/**/*"
+dictionary:
+  - SLE
+  - SMT
diff --git a/.travis.yml b/.travis.yml
index c359823d4..ce70ea789 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,8 +3,9 @@ before_install:
     # disable rvm, use system Ruby
     - rvm reset
     - wget https://raw.githubusercontent.com/yast/yast-devtools/master/travis-tools/travis_setup.sh
-    - sh ./travis_setup.sh -p "yast2-devtools yast2 yast2-slp yast2-add-on yast2-update" -g bundler
+    - sh ./travis_setup.sh -p "yast2-devtools yast2 yast2-slp yast2-add-on yast2-update libaspell-dev aspell-en" -g bundler raspell
 script:
+    - rake check:spelling
     - rake check:pot
     - rubocop
     - yardoc
diff --git a/README.md b/README.md
index b224039dd..0b21f305c 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,6 @@ This is a YaST module for registering a SUSE Linux Enterprise (SLE) product to
 The module is a part of SLE product installation or upgrade workflow.
 
 A registered system will receive security updates and the functionality of the
-system can be extented via online extensions or modules.
+system can be extended via online extensions or modules.
 
 See the wiki pages (https://github.com/yast/yast-registration/wiki) for more details.