diff --git a/README.md b/README.md
index 9a6ba7b05ca2c0a58641a06ce06064d5ff91da5b..bfe0cd2bb0819f0dfbbec0046649346016f072db 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Check Info:
 * *service*: creates one service per RAID volume
 * *state*: **Critical** if raidVolumeState is not optimal or raidDiskState is not online
 * *wato*: option to configure 'ignore disks'. For example on the Smart-1 5150 the array has 12 Disks, but only 6 Disks are in the default hardware.
-* *perfdata*: Syncstatus of the hard discs in % (removed)
+* *perfdata*: none
 
 Testetd with: 23800, 15600, Smart-1 5150 appliances