diff --git a/doc/source/OSprofiler.rst b/doc/source/OSprofiler.rst
index 46e567012..70d8d1968 100644
--- a/doc/source/OSprofiler.rst
+++ b/doc/source/OSprofiler.rst
@@ -84,7 +84,7 @@ Command Line
 ------------
 
 we can use OpenStack Client to analyse the user request now. For example, if we
-want know the performance for "queue list", we can do like this:
+want to know the performance for "queue list", we can do like this:
 
 1. OpenStack Client now supports OSprofiler by default. Only thing we need to
 do is adding ``--os-profile {hmac_keys}`` in the command::
@@ -112,7 +112,7 @@ It also supports json format::
 
     osprofiler trace show --json 2902c7a3-ee18-4b08-aae7-4e34388f9352 --connection-string mongodb://localhost:27017
 
-Of cause it supports to save the result to a file::
+Of course it supports to save the result to a file::
 
     osprofiler trace show --json 2902c7a3-ee18-4b08-aae7-4e34388f9352 --out list_test --connection-string mongodb://localhost:27017
 
diff --git a/doc/source/glossary.rst b/doc/source/glossary.rst
index e3c7c10bd..7890fc5f2 100644
--- a/doc/source/glossary.rst
+++ b/doc/source/glossary.rst
@@ -49,7 +49,7 @@ protocol, which is one of the main requirements in today’s scalable applicatio
    Producer - Consumer
      Producer - Consumer is a pattern where each worker application that reads
      the queue has to claim the message in order to prevent duplicate processing.
-     Later, when the work is done, the worker is responsible from deleting the
+     Later, when the work is done, the worker is responsible for deleting the
      message. If message is not deleted in a predefined time (claim TTL), it can
      be claimed by other workers.