diff --git a/e2e-tests/src/test/staking.rs b/e2e-tests/src/test/staking.rs
index 82d4957191..1ce9f7638f 100644
--- a/e2e-tests/src/test/staking.rs
+++ b/e2e-tests/src/test/staking.rs
@@ -198,7 +198,9 @@ pub async fn staking_new_validator() -> anyhow::Result<()> {
             total: MIN_VALIDATOR_BOND,
             active: MIN_VALIDATOR_BOND,
             unlocking: BoundedVec(vec![]),
-            claimed_rewards: BoundedVec(vec![]),
+            // since era is 3 sessions, validate is done in the first block of 2nd session,
+            // that is already after elections has been done for 1st era
+            claimed_rewards: BoundedVec(vec![0]),
         }
     );
 
diff --git a/primitives/src/lib.rs b/primitives/src/lib.rs
index e59bd722e3..94220796dd 100644
--- a/primitives/src/lib.rs
+++ b/primitives/src/lib.rs
@@ -44,7 +44,7 @@ pub const MILLISECS_PER_BLOCK: u64 = 1000;
 #[cfg(feature = "short_session")]
 pub const DEFAULT_SESSION_PERIOD: u32 = 30;
 #[cfg(feature = "short_session")]
-pub const DEFAULT_SESSIONS_PER_ERA: SessionIndex = 5;
+pub const DEFAULT_SESSIONS_PER_ERA: SessionIndex = 3;
 
 // Default values outside testing
 #[cfg(not(feature = "short_session"))]