diff --git a/Makefile b/Makefile
index 6341533..c7e02e9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 DESTDIR ?= ${HOME}/.local
-OCAML_COMPILER ?= ocaml-system
+OCAML_COMPILER ?= ocaml.5.1.1
 BUILD_PROFILE ?= release
 
 .PHONY: all