diff --git a/media-video/mpv/mpv-9999.ebuild b/media-video/mpv/mpv-9999.ebuild
index 32de4217994a5..b05abe8885db1 100644
--- a/media-video/mpv/mpv-9999.ebuild
+++ b/media-video/mpv/mpv-9999.ebuild
@@ -140,7 +140,7 @@ pkg_setup() {
 src_prepare() {
 	cp "${DISTDIR}/waf-${WAF_PV}" "${S}"/waf || die
 	chmod +x "${S}"/waf || die
-	default
+	default_src_prepare
 }
 
 src_configure() {