diff --git a/cmdb-api/api/lib/perm/authentication/cas/routing.py b/cmdb-api/api/lib/perm/authentication/cas/routing.py
index 68b9241..612ad89 100644
--- a/cmdb-api/api/lib/perm/authentication/cas/routing.py
+++ b/cmdb-api/api/lib/perm/authentication/cas/routing.py
@@ -194,7 +194,7 @@ def validate(ticket):
 
 def _parse_tag(string, tag):
     """
-    Used for parsing xml.  Search string for the first occurence of
+    Used for parsing xml.  Search string for the first occurrence of
     <tag>.....</tag> and return text (stripped of leading and tailing
     whitespace) between tags.  Return "" if tag not found.
     """
diff --git a/docs/makefile_en.md b/docs/makefile_en.md
index 00d2be3..a588799 100644
--- a/docs/makefile_en.md
+++ b/docs/makefile_en.md
@@ -13,7 +13,7 @@
   **set database in config file cmdb-api/settings.py**
 
 - In cmdb directory,start in order as follows:
-  - enviroment: `make env`
+  - environment: `make env`
   - start API: `make api`
   - start UI: `make ui`
   - start worker: `make worker`