The £35,000 signing from non-league Dulwich Hamlet has made a big impact at the Priestfield Stadium, scoring a hat-trick on his full debut in the Johnstone's Paint trophy against Luton.
And he followed that up on Saturday by being the first Charlton player to score a goal against rivals Millwall in over ten years, a feat that has gone down well with Addicks fans.
If Dickson has another successful month, the Gills have the option to extend his loan into December.