diff --git a/doc/langref.md b/doc/langref.md
index 134cf8ac65..a24085c2bf 100644
--- a/doc/langref.md
+++ b/doc/langref.md
@@ -650,6 +650,10 @@ This function returns an integer type with the given signness and bit count.
 
 Makes the target function a test function.
 
+### @setDebugSafety(scope, safety_on: bool)
+
+Sets a whether we want debug safety checks on for a given scope.
+
 ### @isInteger(comptime T: type) -> bool
 
 Returns whether a given type is an integer.