diff --git a/applications/crossbar/doc/blacklists.md b/applications/crossbar/doc/blacklists.md
index 18fcfec6b22..8519802e694 100644
--- a/applications/crossbar/doc/blacklists.md
+++ b/applications/crossbar/doc/blacklists.md
@@ -2,7 +2,7 @@
 
 ## About Blacklists
 
-A blacklist is a map of caller id numbers that can be then apply to the account to block these callers to call the system.
+A blacklist is a map of caller id numbers that can then be applied to the account to block these callers from calling the system.
 
 #### Schema