diff --git a/.evergreen/config.yml b/.evergreen/config.yml
index 3f29391373..3f498ba3fa 100644
--- a/.evergreen/config.yml
+++ b/.evergreen/config.yml
@@ -206,9 +206,9 @@ functions:
       params:
         binary: bash
         working_dir: "src"
-        include_expansions_in_env: [VERSION, TOPOLOGY, AUTH, SSL, ORCHESTRATION_FILE,
+        include_expansions_in_env: [VERSION, TOPOLOGY, AUTH, SSL, ORCHESTRATION_FILE, PYTHON_BINARY,
           STORAGE_ENGINE, REQUIRE_API_VERSION, DRIVERS_TOOLS, TEST_CRYPT_SHARED, AUTH_AWS, LOAD_BALANCER]
-        args: [.evergreen/just.sh, run-server, "${TEST_NAME}", "${SUB_TEST_NAME}"]
+        args: [.evergreen/just.sh, run-server, "${TEST_NAME}"]
     - command: expansions.update
       params:
         file: ${DRIVERS_TOOLS}/mo-expansion.yml
diff --git a/.evergreen/scripts/run-mod-wsgi-tests.sh b/.evergreen/scripts/run-mod-wsgi-tests.sh
index 607458b8c6..f59ace8116 100755
--- a/.evergreen/scripts/run-mod-wsgi-tests.sh
+++ b/.evergreen/scripts/run-mod-wsgi-tests.sh
@@ -22,7 +22,8 @@ PYTHON_VERSION=$(${PYTHON_BINARY} -c "import sys; sys.stdout.write('.'.join(str(
 ${PYTHON_BINARY} -m venv --system-site-packages .venv
 source .venv/bin/activate
 pip install -U pip
-python -m pip install -e .
+export PYMONGO_C_EXT_MUST_BUILD=1
+python -m pip install -v -e .
 
 export MOD_WSGI_SO=/opt/python/mod_wsgi/python_version/$PYTHON_VERSION/mod_wsgi_version/$MOD_WSGI_VERSION/mod_wsgi.so
 export PYTHONHOME=/opt/python/$PYTHON_VERSION