diff --git a/CODESTYLE.md b/CODESTYLE.md
index 393e0a03..7f836bf8 100644
--- a/CODESTYLE.md
+++ b/CODESTYLE.md
@@ -22,5 +22,10 @@
 ## Functions
 `modulenameFunctionName`
 
+### Submodule function naming
+Singletons use names like smInitialize/smExit
+
+Objects use names like tmemCreate/tmemClose
+
 ## Macros
 `LIKE_THIS`