diff --git a/README.rst b/README.rst
index ce941d1..aa53595 100644
--- a/README.rst
+++ b/README.rst
@@ -231,7 +231,7 @@ Once the libraries are in place, move on to the next step.
 Secure Ops
 ----------
 Under the src/ directory in the source is a single C file and a Makefile. Opus
-needs to do certian operations that a non-superuser isn't normally allowed to
+needs to do certain operations that a non-superuser isn't normally allowed to
 do. Specifically, it needs to create system users, change ownership of files,
 and restart Apache. This is all done with a small simple C program compiled and
 set to run with suid root.
diff --git a/README.txt b/README.txt
index c375ff7..fefb910 100644
--- a/README.txt
+++ b/README.txt
@@ -231,7 +231,7 @@ Once the libraries are in place, move on to the next step.
 Secure Ops
 ----------
 Under the src/ directory in the source is a single C file and a Makefile. Opus
-needs to do certian operations that a non-superuser isn't normally allowed to
+needs to do certain operations that a non-superuser isn't normally allowed to
 do. Specifically, it needs to create system users, change ownership of files,
 and restart Apache. This is all done with a small simple C program compiled and
 set to run with suid root.