diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9112523b..b9875945 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -167,6 +167,7 @@ jobs:
       matrix:
         target: [
           sparcv9-sun-solaris,
+          x86_64-unknown-illumos,
           x86_64-unknown-freebsd,
           x86_64-unknown-netbsd,
         ]