diff --git a/dev-ml/jsonm/jsonm-1.0.2.ebuild b/dev-ml/jsonm/jsonm-1.0.2.ebuild
index 64e58477661ee..1977a59d3e884 100644
--- a/dev-ml/jsonm/jsonm-1.0.2.ebuild
+++ b/dev-ml/jsonm/jsonm-1.0.2.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2024 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -29,9 +29,10 @@ src_install() {
 	# Can't use opam-installer here as it is an opam dep...
 	findlib_src_preinst
 
-	local nativelibs="$(echo _build/src/${PN}.cm{x,xa,xs,ti} _build/src/${PN}.a)"
+	local nativelibs=""
+	use ocamlopt && nativelibs="$(echo _build/src/${PN}.cm{x,xa,xs,ti} _build/src/${PN}.a)"
 	ocamlfind install ${PN} _build/pkg/META _build/src/${PN}.mli _build/src/${PN}.cm{a,i} ${nativelibs} || die
 
-	newbin _build/test/jsontrip.native jsontrip
+	use ocamlopt && newbin _build/test/jsontrip.native jsontrip
 	dodoc CHANGES.md TODO.md README.md
 }