diff --git a/README.md b/README.md
index c5c356ea..24c349b5 100644
--- a/README.md
+++ b/README.md
@@ -128,7 +128,7 @@ Rules are stored as JSON files inside the `-rule-path` folder, in the simplest c
 | enabled          | Use to temporarily disable and enable rules without moving their files. |
 | action           | Can be `deny` or `allow`. |
 | duration         | For rules persisting on disk, this value is default to `always`. |
-| operator.type    | Can be `simple`, in which case a simple `==` comparision will be performed, or `regexp` if the `data` field is a regular expression to match. |
+| operator.type    | Can be `simple`, in which case a simple `==` comparison will be performed, or `regexp` if the `data` field is a regular expression to match. |
 | operator.operand | What element of the connection to compare, can be one of: `true` (will always match), `process.path` (the path of the executable), `process.command` (full command line, including path and arguments), `provess.env.ENV_VAR_NAME` (use the value of an environment variable of the process given its name), `user.id`, `dest.ip`, `dest.host` or `dest.port`. |
 | operator.data    | The data to compare the `operand` to, can be a regular expression if `type` is `regexp`. |
 
diff --git a/make_ads_rules.py b/make_ads_rules.py
index cda34b9e..17ef9293 100644
--- a/make_ads_rules.py
+++ b/make_ads_rules.py
@@ -19,7 +19,7 @@ for url in lists:
     print "Downloading %s ..." % url
     r = requests.get(url)
     if r.status_code != 200:
-        print "Erorr, status code %d" % r.status_code
+        print "Error, status code %d" % r.status_code
         continue
 
     for line in r.text.split("\n"):
@@ -48,7 +48,7 @@ os.system("mkdir -p rules")
 idx = 0
 for domain, _ in domains.iteritems():
     with open("rules/adv-%d.json" % idx, "wt") as fp:
-        tpl = """ 
+        tpl = """
 {
    "created": "%s",
    "updated": "%s",
diff --git a/ui/opensnitch/service.py b/ui/opensnitch/service.py
index 9f98bd05..1a99d004 100644
--- a/ui/opensnitch/service.py
+++ b/ui/opensnitch/service.py
@@ -44,7 +44,7 @@ class UIService(ui_pb2_grpc.UIServicer, QtWidgets.QGraphicsObject):
         self._remote_lock = Lock()
         self._remote_stats = {}
 
-        # make sure we save the configuration if it 
+        # make sure we save the configuration if it
         # does not exist as a file yet
         if self._cfg.exists == False:
             self._cfg.save()
@@ -57,7 +57,7 @@ class UIService(ui_pb2_grpc.UIServicer, QtWidgets.QGraphicsObject):
         self.check_thread = Thread(target=self._async_worker)
         self.check_thread.daemon = True
         self.check_thread.start()
-    
+
     # https://gist.github.com/pklaus/289646
     def _setup_interfaces(self):
         max_possible = 128  # arbitrary. raise if needed.
@@ -120,7 +120,7 @@ class UIService(ui_pb2_grpc.UIServicer, QtWidgets.QGraphicsObject):
         if self._version_warning_shown == False:
             self._msg.setIcon(QtWidgets.QMessageBox.Warning)
             self._msg.setWindowTitle("OpenSnitch version mismatch!")
-            self._msg.setText("You are runnig version <b>%s</b> of the daemon, while the UI is at version " + \
+            self._msg.setText("You are running version <b>%s</b> of the daemon, while the UI is at version " + \
                               "<b>%s</b>, they might not be fully compatible." % (daemon_ver, ui_ver))
             self._msg.setStandardButtons(QtWidgets.QMessageBox.Ok)
             self._msg.show()