diff --git a/letsencrypt/client/client.py b/letsencrypt/client/client.py
index 6f17a42a8..98ca07c29 100755
--- a/letsencrypt/client/client.py
+++ b/letsencrypt/client/client.py
@@ -308,7 +308,7 @@ class Client(object):
             self.config.restart(quiet=self.curses)
 
         #if self.ocsp_stapling is None:
-            # q = "Would you like to protect the privacy of of your users " +
+            # q = "Would you like to protect the privacy of your users " +
             # "by enabling OCSP stapling? If so, your users will not have to " +
             # "query the Let's Encrypt CA separately about the current " +
             # "revocation status of your certificate."
@@ -378,7 +378,7 @@ class Client(object):
         path = self.gen_challenge_path(
             c["challenges"], c.get("combinations", None))
 
-        logger.info("Peforming the following challenges:")
+        logger.info("Performing the following challenges:")
 
         # Every indicies element is a list of integers referring to which
         # challenges in the master list the challenge object satisfies
@@ -545,7 +545,7 @@ class Client(object):
 
     def challenge_factory(self, name, challenges, path):
         sni_todo = []
-        # Since a single invocation of SNI challenge can satsify multiple
+        # Since a single invocation of SNI challenge can satisfy multiple
         # challenges. We must keep track of all the challenges it satisfies
         sni_satisfies = []
 
diff --git a/letsencrypt/client/configurator.py b/letsencrypt/client/configurator.py
index a9a3d0552..bf10b90d6 100644
--- a/letsencrypt/client/configurator.py
+++ b/letsencrypt/client/configurator.py
@@ -801,7 +801,7 @@ LogLevel warn \n\
         
     def __general_vhost(self, ssl_vhost):
         """
-        Function needs to be throughly tested and perhaps improved
+        Function needs to be thoroughly tested and perhaps improved
         Will not do well with malformed configurations
         Consider changing this into a dict check
         """
@@ -961,7 +961,7 @@ LogLevel warn \n\
         TEMP_CHECKPOINT_DIR are removed, then IN_PROGRESS changes are removed
         The order is important. IN_PROGRESS is unable to add files that are
         already added by a TEMP change.  Thus TEMP must be rolled back first
-        because that will be the 'latest' occurance of the file.
+        because that will be the 'latest' occurrence of the file.
         """
         self.revert_challenge_config()
         if os.path.isdir(IN_PROGRESS_DIR):