diff --git a/src/backend/farmer.rs b/src/backend/farmer.rs
index 20b17581..b13b9e5c 100644
--- a/src/backend/farmer.rs
+++ b/src/backend/farmer.rs
@@ -578,7 +578,7 @@ pub(super) async fn create_farmer(farmer_options: FarmerOptions) -> anyhow::Resu
 
 /// the farmer can expect to get the next reward payment in this time units (sec/min/hr).
 #[allow(dead_code)]
-fn calculate_expected_reward_duration_from_now(
+pub(crate) fn calculate_expected_reward_duration_from_now(
     total_space_pledged: u128,
     space_pledged: u128,
     last_reward_timestamp: Option<i64>,
diff --git a/src/backend/node.rs b/src/backend/node.rs
index 11353891..75bd56f2 100644
--- a/src/backend/node.rs
+++ b/src/backend/node.rs
@@ -304,7 +304,7 @@ where
         .expect("Failed to get current solution range");
 
     // Calculate the total space pledged
-    let total_space_pledged: u128 = u128::from(u64::MAX)
+    let total_space_pledged = u128::from(u64::MAX)
         .checked_mul(PIECE_SIZE as u128)
         .expect("Multiplication with piece size works; qed")
         .checked_mul(u128::from(SLOT_PROBABILITY.0))