diff --git a/toolkit/components/telemetry/docs/collection/experiments.rst b/toolkit/components/telemetry/docs/collection/experiments.rst
index 1e1b58b642aa..1ef040771ca1 100644
--- a/toolkit/components/telemetry/docs/collection/experiments.rst
+++ b/toolkit/components/telemetry/docs/collection/experiments.rst
@@ -37,4 +37,4 @@ Limits and restrictions
 -----------------------
 To prevent abuses, the content of both the experiment ``id`` and ``branch`` is limited to
 100 characters in length.
-``type`` is limited to a lenght of 20 characters.
+``type`` is limited to a length of 20 characters.