diff --git a/Static-filter-syntax.md b/Static-filter-syntax.md
index 7bde3a1..607e4eb 100644
--- a/Static-filter-syntax.md
+++ b/Static-filter-syntax.md
@@ -1054,6 +1054,7 @@ Valid directives:
    - prepends the current string with `https://` protocol in case it lacks a leading protocol 
    - or replaces already existing leading `http://` protocol with `https://`
 - `-base64`: performs base64-decoding on the current string <sup>(New in [dev build 1.60.1b1+](https://github.com/gorhill/uBlock/commit/e81e70937f5b6f8f98bdd8e6f71af030486efab8))</sup>
+- `-safebase64`: performs safe base64-decoding on the current string <sup>(New in [dev build 1.61.3b0+](https://github.com/gorhill/uBlock/commit/bcc058eba75d4cbb2cd0447885f75e0705812883))</sup>
 - `-uricomponent`: performs URI component-decoding on the current string <sup>(New in [dev build 1.60.1b12+](https://github.com/gorhill/uBlock/commit/01eebffc1f))</sup>
 - `-blocked`: can be used to explicitly allow a `urlskip=` filter to also apply to blocked network requests <sup>(New in [dev build 1.60.1rc0](https://github.com/gorhill/uBlock/commit/d04dc4c767721fb13d91a67cb62ecad9b9219103))</sup>