diff --git a/.github/workflows/weekly.yml b/.github/workflows/weekly.yml
index 14f5983a02..18a93f3957 100644
--- a/.github/workflows/weekly.yml
+++ b/.github/workflows/weekly.yml
@@ -19,7 +19,7 @@ jobs:
             SKIP_ALGS: 'SPHINCS\+-SHA*,Classic-McEliece-(.)*'
           - name: extensions
             container: openquantumsafe/ci-ubuntu-focal-x86_64:latest
-            CMAKE_ARGS: -DOQS_OPT_TARGET=haswell -DCMAKE_BUILD_TYPE=Debug -DOQS_ENABLE_TEST_CONSTANT_TIME=ON
+            CMAKE_ARGS: -DOQS_DIST_BUILD=OFF -DOQS_OPT_TARGET=haswell -DCMAKE_BUILD_TYPE=Debug -DOQS_ENABLE_TEST_CONSTANT_TIME=ON
             PYTEST_ARGS: --numprocesses=auto -k 'test_constant_time'
             SKIP_ALGS: 'SPHINCS\+-SHA*,Classic-McEliece-(.)*'
     container: