minor fix in README

README.md

@@ -37,7 +37,7 @@ The aggregator tool requires an access to the database (currently InlfuxDB). DB
     - Configure the Makefile and set at least `SPATH` variable and `LDFLAGS` variable if needed.
 3. You can move `setuid-runner/setuid-runner` anywhere where it is accessible by users
 4. Change the ownership of all files to `safeuser` and remove the access for anyone else: `chown -R safeuser aggregator && chmod -R go-rwx aggregator`
-5. Set **setuid** bit of the `setuid-runner` binary and ownership accordingly: `chmod u+s,a+rx setuid-runner && chown safeuser setuid-runner`
+5. Set **setuid** bit of the `setuid-runner` binary and ownership accordingly: `chmod ug+s,a+rx setuid-runner && chown safeuser setuid-runner`
 6. Now in order to fetch the data call `setuid-runner` as you call `data.py`, for instance: `./setuid-runner -t text JOBID`
 
 ## Usage