diff --git a/.editorconfig b/.editorconfig
index 69754d3221..2f755a9d5e 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -6,9 +6,15 @@ root = true
 
 # Add a blank newline to the end of every file after saving
 # Trim trailing whitespace
+# Adjust character set
 [*]
 insert_final_newline = true
 trim_trailing_whitespace = true
+charset = utf-8
+
+# Use tabs in source
+[*.{cpp,c,hpp,h}]
+indent_style = tab
 
 # YAML does not support hard tabs.
 [*.{yml,yaml}]