diff --git a/check_clientbackup.sh b/check_clientbackup.sh
index 633ac3c0e32bbdc673af9aab4d74b75ef9f28243..031f6ee6fd400b3f398df7c10d3fb57dba41fdd2 100755
--- a/check_clientbackup.sh
+++ b/check_clientbackup.sh
@@ -73,7 +73,7 @@ function showAge(){
 # To use it set a pipe in front:
 # <command> | filterColor
 function filterColor(){
-  sed -r "s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g"
+  sed -r "s/\x1B\[([0-9]{1,3}(;[0-9]{1,2})?)?[mGK]//g"
 }
 
 # ------------------------------------------------------------------------------