diff --git a/crates/client/src/client.rs b/crates/client/src/client.rs
index 89c49514b..bf2a36ebb 100644
--- a/crates/client/src/client.rs
+++ b/crates/client/src/client.rs
@@ -116,6 +116,9 @@ pub async fn sign(
     let message_hash = Hasher::keccak(&message);
 
     let validators_info = get_validators_not_signer_for_relay(api, rpc).await?;
+    if validators_info.is_empty() {
+        return Err(ClientError::NoNonSigningValidators);
+    }
 
     tracing::debug!("Validators info {:?}", validators_info);
     let block_number = rpc.chain_get_header(None).await?.ok_or(ClientError::BlockNumber)?.number;
diff --git a/crates/client/src/errors.rs b/crates/client/src/errors.rs
index 163059b11..24705ae55 100644
--- a/crates/client/src/errors.rs
+++ b/crates/client/src/errors.rs
@@ -96,8 +96,6 @@ pub enum ClientError {
     TryFromSlice(#[from] std::array::TryFromSliceError),
     #[error("User is not registered on-chain")]
     NotRegistered,
-    #[error("No synced validators")]
-    NoSyncedValidators,
     #[error("Cannot confirm program was created")]
     CannotConfirmProgramCreated,
     #[error("Cannot confirm program was removed")]
@@ -108,4 +106,6 @@ pub enum ClientError {
     CannotQuerySynced,
     #[error("Verifying key has incorrect length")]
     BadVerifyingKeyLength,
+    #[error("There are no validators which can act as a relay node for signature requests")]
+    NoNonSigningValidators,
 }