diff --git a/public/app-developpement-java.nix b/public/app-developpement-java.nix
index f3a61ec..ec46e14 100644
--- a/public/app-developpement-java.nix
+++ b/public/app-developpement-java.nix
@@ -18,4 +18,7 @@ mkIf cfg.developpement-java {
     maven
     openjdk
   ];
+  environment.variables = {
+    JAVA_HOME = "${pkgs.openjdk}";
+  };
 }