diff --git a/OCaml.gitignore b/OCaml.gitignore
index d134abd5..250caf74 100644
--- a/OCaml.gitignore
+++ b/OCaml.gitignore
@@ -8,6 +8,13 @@
 *.cmxs
 *.cmxa
 
+# Files containing detailed information about the compilation (generated
+# by `ocamlc`/`ocamlopt` when invoked using the option `-bin-annot`).
+# These files are typically useful for code inspection tools
+# (e.g. Merlin).
+*.cmt
+*.cmti
+
 # ocamlbuild and Dune default working directory
 _build/