diff --git a/pygeoapi/provider/elasticsearch_.py b/pygeoapi/provider/elasticsearch_.py
index ac7ed3f..98bf41f 100644
--- a/pygeoapi/provider/elasticsearch_.py
+++ b/pygeoapi/provider/elasticsearch_.py
@@ -446,6 +446,9 @@ class ElasticsearchCatalogueProvider(ElasticsearchProvider):
         fields = super().get_fields()
         for i in self._excludes():
             del fields[i]
+
+        fields['q'] = 'string'
+
         return fields
 
     def query(self, startindex=0, limit=10, resulttype='results',
diff --git a/pygeoapi/provider/tinydb_.py b/pygeoapi/provider/tinydb_.py
index 818841c..689f0e2 100644
--- a/pygeoapi/provider/tinydb_.py
+++ b/pygeoapi/provider/tinydb_.py
@@ -87,6 +87,8 @@ class TinyDBCatalogueProvider(BaseProvider):
             if p not in self.excludes + ['extent']:
                 fields[p] = 'string'
 
+        fields['q'] = 'string'
+
         return fields
 
     def query(self, startindex=0, limit=10, resulttype='results',
diff --git a/tests/test_tinydb_catalogue_provider.py b/tests/test_tinydb_catalogue_provider.py
index a088f58..bd56d86 100644
--- a/tests/test_tinydb_catalogue_provider.py
+++ b/tests/test_tinydb_catalogue_provider.py
@@ -62,9 +62,10 @@ def test_query(config):
     p = TinyDBCatalogueProvider(config)
 
     fields = p.get_fields()
-    assert len(fields) == 7
+    assert len(fields) == 8
     assert fields['record-created'] == 'string'
     assert fields['title'] == 'string'
+    assert fields['q'] == 'string'
 
     results = p.query()
     assert len(results['features']) == 10