diff --git a/pallets/duniter-account/src/lib.rs b/pallets/duniter-account/src/lib.rs
index c6a0fb33a96edb9a09370ae90ca4538407545c1e..ea0ab03c8bd3282e86ae04f3ba94d3f7515f2e89 100644
--- a/pallets/duniter-account/src/lib.rs
+++ b/pallets/duniter-account/src/lib.rs
@@ -54,7 +54,9 @@ pub mod pallet {
         type AccountIdToSalt: Convert<Self::AccountId, [u8; 32]>;
         /// The overarching event type.
         type Event: From<Event<Self>> + IsType<<Self as frame_system::Config>::Event>;
+        #[pallet::constant]
         type MaxNewAccountsPerBlock: Get<u32>;
+        #[pallet::constant]
         type NewAccountPrice: Get<Self::Balance>;
     }
 
diff --git a/pallets/duniter-wot/src/lib.rs b/pallets/duniter-wot/src/lib.rs
index 919cc9393cfdb72820bda28ad332a66b6c5aee10..1ea7ae1f80d275cc1dfcc51c706ea9600239875a 100644
--- a/pallets/duniter-wot/src/lib.rs
+++ b/pallets/duniter-wot/src/lib.rs
@@ -65,9 +65,13 @@ pub mod pallet {
         + pallet_identity::Config<IdtyIndex = IdtyIndex>
         + pallet_membership::Config<I, IdtyId = IdtyIndex>
     {
+        #[pallet::constant]
         type FirstIssuableOn: Get<Self::BlockNumber>;
+        #[pallet::constant]
         type IsSubWot: Get<bool>;
+        #[pallet::constant]
         type MinCertForMembership: Get<u32>;
+        #[pallet::constant]
         type MinCertForCreateIdtyRight: Get<u32>;
     }
 
diff --git a/pallets/identity/src/lib.rs b/pallets/identity/src/lib.rs
index d3d36af60d540b796342ca43c4047e59ca13c461..c8f8b4f4373b409d18d490711d4e1ebee3357a8f 100644
--- a/pallets/identity/src/lib.rs
+++ b/pallets/identity/src/lib.rs
@@ -72,6 +72,7 @@ pub mod pallet {
         type Event: From<Event<Self>> + IsType<<Self as frame_system::Config>::Event>;
         /// Management of the authorizations of the different calls. (The default implementation only allows root)
         type EnsureIdtyCallAllowed: EnsureIdtyCallAllowed<Self>;
+        #[pallet::constant]
         /// Minimum duration between the creation of 2 identities by the same creator
         type IdtyCreationPeriod: Get<Self::BlockNumber>;
         /// Custom data to store in each identity