diff --git a/src/pricehist/sources/coindesk.py b/src/pricehist/sources/coindesk.py
index 6fb68aa..f90ee19 100644
--- a/src/pricehist/sources/coindesk.py
+++ b/src/pricehist/sources/coindesk.py
@@ -32,7 +32,7 @@ class CoinDesk:
 
     @staticmethod
     def types():
-        return []
+        return ["close"]
 
     @staticmethod
     def notes():
diff --git a/src/pricehist/sources/ecb.py b/src/pricehist/sources/ecb.py
index 104fc18..ecf6377 100644
--- a/src/pricehist/sources/ecb.py
+++ b/src/pricehist/sources/ecb.py
@@ -31,7 +31,7 @@ class ECB:
 
     @staticmethod
     def types():
-        return []
+        return ["reference"]
 
     @staticmethod
     def notes():