diff --git a/README.md b/README.md
index 5879dd9..31576a4 100644
--- a/README.md
+++ b/README.md
@@ -82,7 +82,7 @@ route do |r|
 end
 ```
 
-With `proxy_when` the first optional parameter expects a truthy value or a block / lambda that returns a truthy value. This must be equivalent to `true` for the proxying to occur. The optional probability is a float between 0 and 1 indicating the probability that proxying will happen. Both paramters can be used alone or in isolation.
+With `proxy_when` the first optional parameter expects a truthy value or a block / lambda that returns a truthy value. This must be equivalent to `true` for the proxying to occur. The optional probability is a float between 0 and 1 indicating the probability that proxying will happen. Both parameters can be used alone or in isolation.
 
 If and only if proxying does not occur will the block be evaluated and return to Roda for rendering.