diff --git a/libisl/PKGBUILD b/libisl/PKGBUILD
index 90d7307a66..5bb969e9a5 100644
--- a/libisl/PKGBUILD
+++ b/libisl/PKGBUILD
@@ -9,7 +9,7 @@ pkgname=libisl
 pkgver=0.27
 pkgrel=1.1
 pkgdesc='Library for manipulating sets and relations of integer points bounded by linear constraints'
-arch=(x86_64 powerpc64le powerpc64 powerpc riscv64)
+arch=(x86_64 powerpc64le powerpc64 powerpc espresso riscv64)
 url='https://libisl.sourceforge.io'
 license=('MIT')
 depends=('gmp')