diff --git a/coccinelle.changes b/coccinelle.changes
index a29f4ef..f0dfeeb 100644
--- a/coccinelle.changes
+++ b/coccinelle.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Feb 18 11:11:11 UTC 2020 - olaf@aepfle.de
+
+- The used buildsystem relies on ocaml.opt
+
 -------------------------------------------------------------------
 Wed Jan 15 17:10:38 UTC 2020 - olaf@aepfle.de
 
diff --git a/coccinelle.spec b/coccinelle.spec
index b299157..a691a5c 100644
--- a/coccinelle.spec
+++ b/coccinelle.spec
@@ -29,7 +29,7 @@ BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  fdupes
 BuildRequires:  ncurses-devel
-BuildRequires:  ocaml >= 3.11
+BuildRequires:  ocaml(ocaml.opt)
 BuildRequires:  ocaml-findlib
 BuildRequires:  ocaml-menhir-devel
 BuildRequires:  ocaml-ocamlbuild