diff --git a/profiles/pentoo/base/package.accept_keywords/sci-libs b/profiles/pentoo/base/package.accept_keywords/sci-libs
index a797a9ae2..84d5b5df9 100644
--- a/profiles/pentoo/base/package.accept_keywords/sci-libs
+++ b/profiles/pentoo/base/package.accept_keywords/sci-libs
@@ -13,3 +13,6 @@ sci-electronics/litepcie
 sci-electronics/liteusb
 sci-electronics/liteeth
 sci-electronics/litescope
+
+#https://bugs.gentoo.org/670246
+=sci-libs/arpack-3.4*