diff --git a/cads_adaptors/adaptors/cams_regional_fc/__init__.py b/cads_adaptors/adaptors/cams_regional_fc/__init__.py
index 872debe3..21aaebd0 100644
--- a/cads_adaptors/adaptors/cams_regional_fc/__init__.py
+++ b/cads_adaptors/adaptors/cams_regional_fc/__init__.py
@@ -7,7 +7,7 @@ class CAMSEuropeAirQualityForecastsAdaptor(AbstractCdsAdaptor):
     def retrieve(self, request: Request) -> BinaryIO:
         from .cams_regional_fc import cams_regional_fc
 
-        request.pop("_in_adaptor_no_cache", None)
+        request.pop("__in_adaptor_no_cache", None)
         self.normalise_request(request)
 
         # for now this is needed down the road to enforce the schema
diff --git a/cads_adaptors/adaptors/cams_regional_fc/preprocess_requests.py b/cads_adaptors/adaptors/cams_regional_fc/preprocess_requests.py
index 78049c36..3dbe020e 100644
--- a/cads_adaptors/adaptors/cams_regional_fc/preprocess_requests.py
+++ b/cads_adaptors/adaptors/cams_regional_fc/preprocess_requests.py
@@ -83,7 +83,7 @@ def apply_schema(requests, context):
     ]
     recognised_keys = sorted(
         set(mandatory_keys).union(
-            ["area", "no_cache", "_in_adaptor_no_cache", "_local_subarea"]
+            ["area", "no_cache", "__in_adaptor_no_cache", "_local_subarea"]
         )
     )