diff --git a/media-video/cinelerra/cinelerra-5.1.20201031-r2.ebuild b/media-video/cinelerra/cinelerra-5.1.20201031-r2.ebuild
index 3bc5141..31561fa 100644
--- a/media-video/cinelerra/cinelerra-5.1.20201031-r2.ebuild
+++ b/media-video/cinelerra/cinelerra-5.1.20201031-r2.ebuild
@@ -86,7 +86,7 @@ src_configure() {
 		$(use_with shuttle) \
 		$(use_with lv2) \
 		$(use_with openexr) \
-		--with-plugin-dir=/usr/$(get_libdir)/${PN} \
+		--with-plugin-dir="${EPREFIX}/usr/$(get_libdir)/${PN}" \
 		${myconf}
 }