diff --git a/CHANGELOG.asciidoc b/CHANGELOG.asciidoc
index 9ad32802a..87d6d5a06 100644
--- a/CHANGELOG.asciidoc
+++ b/CHANGELOG.asciidoc
@@ -53,7 +53,7 @@ Changed
   colored logs without it.
 - URLs are now shown decoded when hovering.
 - Keybindings are now shown in the command completion
-- Improved behaviour when pasting multiple lines
+- Improved behavior when pasting multiple lines
 
 Fixed
 -----
diff --git a/misc/userscripts/password_fill b/misc/userscripts/password_fill
index 0bbab8c3b..2d755375e 100755
--- a/misc/userscripts/password_fill
+++ b/misc/userscripts/password_fill
@@ -22,7 +22,7 @@ Pass backend: (see also passwordstore.org)
   must be contained in a later line beginning with "user:", "login:", or
   "username:" (configurable by the user_pattern variable).
 
-Behaviour:
+Behavior:
   It will try to find a username/password entry in the configured backend
   (currently only pass) for the current website and will load that pair of
   username and password to any form on the current page that has some password
@@ -89,7 +89,7 @@ simplify_url() {
 
 # no_entries_found() is called if the first query_entries() call did not find
 # any matching entries. Multiple implementations are possible:
-# The easiest behaviour is to quit:
+# The easiest behavior is to quit:
 #no_entries_found() {
 #    if [ 0 -eq "${#files[@]}" ] ; then
 #        die "No entry found for »$simple_url«"
@@ -106,7 +106,7 @@ simplify_url() {
 #     fi
 # }
 
-# Another behaviour is to drop another level of subdomains until search hits
+# Another behavior is to drop another level of subdomains until search hits
 # are found:
 no_entries_found() {
     while [ 0 -eq "${#files[@]}" ] && [ -n "$simple_url" ]; do
diff --git a/misc/userscripts/view_in_mpv b/misc/userscripts/view_in_mpv
index 51aee47ef..f012e1f85 100755
--- a/misc/userscripts/view_in_mpv
+++ b/misc/userscripts/view_in_mpv
@@ -1,6 +1,6 @@
 #!/bin/bash -e
 #
-# Behaviour:
+# Behavior:
 #   Userscript for qutebrowser which views the current web page in mpv using
 #   sensible mpv-flags. While viewing the page in MPV, all <video>, <embed>,
 #   and <object> tags in the original page are temporarily removed. Clicking on
diff --git a/scripts/dev/misc_checks.py b/scripts/dev/misc_checks.py
index 842215b0d..47b2158ae 100644
--- a/scripts/dev/misc_checks.py
+++ b/scripts/dev/misc_checks.py
@@ -49,7 +49,7 @@ def _get_files(only_py=False):
         if only_py:
             endings = {'.py'}
         else:
-            endings = {'.py', '.asciidoc', '.js'}
+            endings = {'.py', '.asciidoc', '.js', '.feature'}
         files = (e for e in filenames if os.path.splitext(e)[1] in endings)
         for name in files:
             yield os.path.join(dirpath, name)
diff --git a/tests/integration/features/search.feature b/tests/integration/features/search.feature
index ebd2f065d..8ff205f89 100644
--- a/tests/integration/features/search.feature
+++ b/tests/integration/features/search.feature
@@ -41,7 +41,7 @@ Feature: Searching on a page
         And I run :yank-selected
         Then the clipboard should contain "/slash"
 
-    # This doesn't work because this is QtWebKit behaviour.
+    # This doesn't work because this is QtWebKit behavior.
     @xfail_norun
     Scenario: Searching text with umlauts
         When I run :search blub
diff --git a/tests/integration/features/tabs.feature b/tests/integration/features/tabs.feature
index 53476bbb8..026d5da22 100644
--- a/tests/integration/features/tabs.feature
+++ b/tests/integration/features/tabs.feature
@@ -119,7 +119,7 @@ Feature: Tab management
         And I run :tab-close --opposite
         Then the error "-o is not supported with 'tabs->select-on-remove' set to 'previous'!" should be shown
 
-    Scenario: :tab-close should restore selection behaviour
+    Scenario: :tab-close should restore selection behavior
         When I set tabs -> select-on-remove to right
         And I open data/numbers/1.txt
         And I open data/numbers/2.txt in a new tab
diff --git a/tests/integration/features/userscripts.feature b/tests/integration/features/userscripts.feature
index a3c35043d..d82d47c4f 100644
--- a/tests/integration/features/userscripts.feature
+++ b/tests/integration/features/userscripts.feature
@@ -1,3 +1,3 @@
-Scenario: Starting an userscript which doesn't exist
+Scenario: Starting a userscript which doesn't exist
     When I run :spawn -u this_does_not_exist
     Then the error "Error while spawning userscript: The process failed to start." should be shown