diff --git a/.gitignore b/.gitignore
index df7b8325..dd3d79d4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 _build/
+_opam/
 *.install
 src/**/.merlin
 legifrance_oauth*
diff --git a/catala.opam b/catala.opam
index 72e77e69..b32e1b46 100644
--- a/catala.opam
+++ b/catala.opam
@@ -8,7 +8,7 @@ higher-level specification languages for fiscal legislation.
 """
 maintainer: ["contact@catala-lang.org"]
 authors: ["Denis Merigoux"]
-license: "Apache2"
+license: "Apache-2.0"
 homepage: "https://github.com/CatalaLang/catala"
 bug-reports: "https://github.com/CatalaLang/catala/issues"
 depends: [