"Return of the Jedi" star is tired of "explaining how offensive the word 'midget' is."
The tweet in question shows a photograph of the actor and his family on a red carpet with a caption reading, "Oh my god. Warwick Davis has got a full midget family."
According to Davis, he reported the tweet as abuse twice, but it's still on the fan's timeline.
"Twitter is supposed to have clamped down on abusive behavior on their platform. However, even after reporting twice, and explaining how offensive the word 'midget' is to many short statured individuals, they continue to allow the Tweet below to remain on the users timeline," Davis tweeted.
About 16 hours later, Davis tweeted an update: "News just in Twitter [has] emailed me. 'Thank you for contacting us about this issue. We have reviewed the account you reported and have locked it because we found it to be in violation of the Twitter Rules.'"
The actor then thanked all of his fans for helping him "educate and make the world a better place."
"Wow! What can I say? I am overwhelmed by the response I have received about this. Thank you each and every one of you for taking time to 'like' and 'retweet,' and in turn doing your bit to educate and make the world a better place for everyone."