diff --git a/lib/galaxy/tools/__init__.py b/lib/galaxy/tools/__init__.py
index d1f50b945c28..1fae939dd5d1 100644
--- a/lib/galaxy/tools/__init__.py
+++ b/lib/galaxy/tools/__init__.py
@@ -3670,6 +3670,17 @@ def element_is_valid(element: model.DatasetCollectionElement):
         return False
 
 
+class FilterNullTool(FilterDatasetsTool):
+    tool_type = "filter_null"
+    require_dataset_ok = True
+
+    @staticmethod
+    def element_is_valid(element: model.DatasetCollectionElement):
+        element_object = element.element_object
+        assert isinstance(element_object, model.DatasetInstance)
+        return element_object.extension == "expression.json" and element_object.blurb == "skipped"
+
+
 class FlattenTool(DatabaseOperationTool):
     tool_type = "flatten_collection"
     require_terminal_states = False
diff --git a/lib/galaxy_test/api/test_workflow_build_module.py b/lib/galaxy_test/api/test_workflow_build_module.py
new file mode 100644
index 000000000000..546f6192e397
--- /dev/null
+++ b/lib/galaxy_test/api/test_workflow_build_module.py
@@ -0,0 +1,19 @@
+from galaxy_test.base.populators import (
+    skip_without_tool,
+    WorkflowPopulator,
+)
+from ._framework import ApiTestCase
+
+
+class TestBuildWorkflowModule(ApiTestCase):
+
+    def setUp(self):
+        super().setUp()
+        self.workflow_populator = WorkflowPopulator(self.galaxy_interactor)
+
+    @skip_without_tool("select_from_url")
+    def test_build_module_filter_dynamic_select(self):
+        # Verify that filtering on parameters that depend on parameter and validators works
+        # fine in workflow building mode.
+        module = self.workflow_populator.build_module(step_type="tool", content_id="select_from_url")
+        assert not module["errors"], module["errors"]
diff --git a/lib/galaxy_test/base/populators.py b/lib/galaxy_test/base/populators.py
index 014880ebd1e6..bd5feaa01592 100644
--- a/lib/galaxy_test/base/populators.py
+++ b/lib/galaxy_test/base/populators.py
@@ -2298,6 +2298,12 @@ def import_tool(self, tool) -> Dict[str, Any]:
         assert upload_response.status_code == 200, upload_response
         return upload_response.json()
 
+    def build_module(self, step_type: str, content_id: Optional[str] = None, inputs: Optional[Dict[str, Any]] = None):
+        payload = {"inputs": inputs or {}, "type": step_type, "content_id": content_id}
+        response = self._post("workflows/build_module", data=payload, json=True)
+        assert response.status_code == 200, response
+        return response.json()
+
     def _import_tool_response(self, tool) -> Response:
         using_requirement("admin")
         tool_str = json.dumps(tool, indent=4)
diff --git a/test/functional/tools/select_from_url.xml b/test/functional/tools/select_from_url.xml
index 60a712e74631..488055677e85 100644
--- a/test/functional/tools/select_from_url.xml
+++ b/test/functional/tools/select_from_url.xml
@@ -10,6 +10,13 @@ echo '$url_param_value_header_and_body' > '$param_value_header_and_body'
             <options from_url="https://usegalaxy.org/api/genomes">
             </options>
         </param>
+        <param name="dynamic_param_filtered_with_validator" type="select">
+            <!-- tested in test_build_module_filter_dynamic_select -->
+            <options from_url="https://usegalaxy.org/api/genomes">
+                <filter type="param_value" ref="url_param_value" column="1" />
+            </options>
+            <validator type="no_options" message="Need at least one option here" />
+        </param>
         <!--
         <param name="url_param_value_templated" type="select">
             <options from_url="http://localhost:8000/data?user=$__user_id__">