diff --git a/games-arcade/tetrio-desktop/tetrio-desktop-8.ebuild b/games-arcade/tetrio-desktop/tetrio-desktop-8.ebuild
index 5f683b8c9a..352bf90904 100644
--- a/games-arcade/tetrio-desktop/tetrio-desktop-8.ebuild
+++ b/games-arcade/tetrio-desktop/tetrio-desktop-8.ebuild
@@ -100,7 +100,7 @@ src_install() {
 
 	doins -r "opt/${PN}/locales" "opt/${PN}/resources" "opt/${PN}/swiftshader"
 
-	fperms a+x "${DESTDIR}/swiftshader/"*
+	fperms -R a+x "${DESTDIR}/swiftshader/"
 
 	fowners root "${DESTDIR}/chrome-sandbox"
 	fperms 4711 "${DESTDIR}/chrome-sandbox"