diff --git a/man8/thin_trim.txt b/man8/thin_trim.txt
index 1d24a06..e19d8bd 100644
--- a/man8/thin_trim.txt
+++ b/man8/thin_trim.txt
@@ -12,9 +12,6 @@ DESCRIPTION
 OPTIONS
   -h, --help		Print help and exit.
   -V, --version		Print version information and exit.
-  --pool-inactive	Indicates you are aware the pool should be inactive.
-
-    Suppresses a warning message and prompt.
 
 SEE ALSO
   thin_dump(8), thin_repair(8), thin_restore(8), thin_rmap(8), thin_metadata_size(8)