diff --git a/editorconfig b/editorconfig
index 46dc1cc0..9b9b18f4 100644
--- a/editorconfig
+++ b/editorconfig
@@ -9,7 +9,7 @@ charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 
-[*.{el,rb,lua,yml,yaml,json,toml,nim,coffee,scss}]
+[*.{el,rb,lua,yml,yaml,json,toml,nim,coffee,scss,slim}]
 indent_size = 2
 
 [*.go]