diff --git a/bootstraps/bootstrap-install b/bootstraps/bootstrap-install
index d7fe259c252e46413f52f379a0ecd7a065cb9641..080de5dc5a812b088588efca5a6203631f1004fa 100644
--- a/bootstraps/bootstrap-install
+++ b/bootstraps/bootstrap-install
@@ -163,6 +163,10 @@ fi
 # Remove the temporary skel, as it isn't needed anymore
 rmdir "${TMPSKEL}"
 
+# Remove old crontab of seed_mec, in case there's one, avoinding a specific
+# error of wrong owner/lack of permissions
+crontab -u seed_mec -r
+
 # Check if this is not an UCA Classmate, UCA Server nor ProInfo Projector, and
 # if the line that gives root permission doesn't exist before adding it
 if ! test -n "${PROJECTOR}" -o -f "/usr/sbin/projetor" -o \