diff --git a/c_src/Makefile b/c_src/Makefile
index 6a1e27d..3a6af92 100644
--- a/c_src/Makefile
+++ b/c_src/Makefile
@@ -2,9 +2,9 @@
 # ERTS_INCLUDE_DIR
 # MIX_APP_PATH
 
-# This works on rtx enabled machines. It is for direct usage only (dev).
+# This works on mise enabled machines. It is for direct usage only (dev).
 ifndef ERTS_INCLUDE_DIR
-ERTS_INCLUDE_DIR := $(shell rtx where erlang)/erts-14.1.1/include
+ERTS_INCLUDE_DIR := $(shell mise where erlang)/erts-14.1.1/include
 endif
 ifndef MIX_APP_PATH
 MIX_APP_PATH := ..