diff --git a/docs/src/api/params.md b/docs/src/api/params.md
index 872e6439f7..2aac966ea0 100644
--- a/docs/src/api/params.md
+++ b/docs/src/api/params.md
@@ -408,7 +408,7 @@ Defaults to `20`. Pass `0` to not follow redirects.
 ## evaluate-expression
 - `expression` <[string]>
 
-JavaScript expression to be evaluated in the browser context. If the expresion evaluates
+JavaScript expression to be evaluated in the browser context. If the expression evaluates
 to a function, the function is automatically invoked.
 
 ## js-evaluate-pagefunction