diff --git a/evomaintenance.sh b/evomaintenance.sh
index 6725e16..02183f2 100755
--- a/evomaintenance.sh
+++ b/evomaintenance.sh
@@ -174,7 +174,7 @@ is_repository_readonly() {
         mount | grep ${partition} | grep -q "read-only"
     else
         mountpoint=$(stat -c '%m' $1)
-        findmnt ${mountpoint} --noheadings --output OPTIONS | grep -q -E "\bro\b"
+        findmnt ${mountpoint} --noheadings --output OPTIONS -O ro
     fi
 }
 remount_repository_readwrite() {