diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e8c90bfbe..131d92f2d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -38,6 +38,13 @@ jobs:
         ./checksum.sh ./test/gen_KAT512  ec4ac397e595ac7457cb7d8830921faf3290898a10d7dd3864aab89ea61fe9a3
         ./checksum.sh ./test/gen_KAT768  9a0826ad3c5232dfd3b21bc4801408655c565a491b760f509b2ee2cd7180babe
         ./checksum.sh ./test/gen_KAT1024 6dafb867599b750a6a831b03e494cf41dea748c78a0e275e7b268bbb893cf37d
+    - name: Compare gen_NISTKAT with known hash
+      shell: nix develop .#ci -c bash -e {0}
+      run: |
+        make nistkat;
+        ./checksum.sh ./test/gen_NISTKAT512  4b88ac7643ff60209af1175e025f354272e88df827a0ce1c056e403629b88e04
+        ./checksum.sh ./test/gen_NISTKAT768  21b4a1e1ea34a13c26a9da5eeb9325afb5ca11596ca6f3704c3f2637e3ea7524
+        ./checksum.sh ./test/gen_NISTKAT1024 6471398b0a728ee1ef39e93bb89b526fbf59587a3662edadbcfc6c88a512cd71
     - name: Clean up
       shell: nix develop .#ci -c bash -e {0}
       run: |