diff --git a/lib/commands/extendLock-2.lua b/lib/commands/extendLock-2.lua
index d2b66a666..1bd4ce13a 100644
--- a/lib/commands/extendLock-2.lua
+++ b/lib/commands/extendLock-2.lua
@@ -10,7 +10,7 @@
     ARGV[3]  jobid
 
   Output:
-    "1" if lock extented succesfully.
+    "1" if lock extended succesfully.
 ]]
 local rcall = redis.call
 if rcall("GET", KEYS[1]) == ARGV[1] then