diff --git a/.editorconfig b/.editorconfig
index e75921e64de0..226e4c219186 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -11,7 +11,7 @@ charset = utf-8
 trim_trailing_whitespace = true
 
 # Source code files
-[*.{c,cxx,cpp,h,hxx,hpp,java,mm,py,swift,xsl}]
+[*.{c,cxx,cpp,h,hxx,hpp,java,m,mm,py,swift,xsl}]
 indent_style = space
 indent_size = 4