diff --git a/dev-lang/swi-prolog/swi-prolog-8.4.2.ebuild b/dev-lang/swi-prolog/swi-prolog-8.4.2.ebuild
index a249be4e3b7db..fc8d61141e4d2 100644
--- a/dev-lang/swi-prolog/swi-prolog-8.4.2.ebuild
+++ b/dev-lang/swi-prolog/swi-prolog-8.4.2.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-inherit cmake desktop xdg-utils flag-o-matic toolchain-funcs
+inherit cmake desktop xdg-utils flag-o-matic toolchain-funcs java-pkg-opt-2
 
 PATCHSET_VER="0"
 
@@ -53,6 +53,10 @@ BDEPEND="virtual/pkgconfig"
 
 S="${WORKDIR}/swipl-${PV}"
 
+pkg_setup() {
+	java-pkg-opt-2_pkg_setup
+}
+
 src_prepare() {
 	if [[ -d "${WORKDIR}"/${PV} ]] ; then
 		eapply "${WORKDIR}"/${PV}