diff --git a/pkgs/by-name/db/dbus_java/package.nix b/pkgs/by-name/db/dbus_java/package.nix
index ef558cba2a29..ac48e9a32479 100644
--- a/pkgs/by-name/db/dbus_java/package.nix
+++ b/pkgs/by-name/db/dbus_java/package.nix
@@ -15,11 +15,14 @@ stdenv.mkDerivation (finalAttrs: {
     url = "https://dbus.freedesktop.org/releases/dbus-java/dbus-java-${finalAttrs.version}.tar.gz";
     sha256 = "0cyaxd8x6sxmi6pklkkx45j311a6w51fxl4jc5j3inc4cailwh5y";
   };
-  JAVA_HOME = jdk8;
-  JAVA = "${jdk8}/bin/java";
-  PREFIX = "\${out}";
-  JAVAUNIXLIBDIR = "${libmatthew_java}/lib/jni";
-  JAVAUNIXJARDIR = "${libmatthew_java}/share/java";
+
+  env = {
+    JAVA_HOME = jdk8;
+    JAVA = "${jdk8}/bin/java";
+    PREFIX = "\${out}";
+    JAVAUNIXLIBDIR = "${libmatthew_java}/lib/jni";
+    JAVAUNIXJARDIR = "${libmatthew_java}/share/java";
+  };
   buildInputs = [
     gettext
     jdk8