diff --git a/soroban-env-host/tests/fees.rs b/soroban-env-host/tests/fees.rs
index 9bef7d335..ff7211eef 100644
--- a/soroban-env-host/tests/fees.rs
+++ b/soroban-env-host/tests/fees.rs
@@ -1,8 +1,20 @@
-use soroban_env_host::fees::{
-    compute_rent_fee, compute_transaction_resource_fee, compute_write_fee_per_1kb,
-    FeeConfiguration, LedgerEntryRentChange, RentFeeConfiguration, TransactionResources,
-    WriteFeeConfiguration,
-};
+use soroban_env_common::xdr::{Hash, LedgerEntry, LedgerEntryData, LedgerEntryExt, WriteXdr};
+use soroban_env_host::fees::{compute_rent_fee, compute_transaction_resource_fee, compute_write_fee_per_1kb, EXPIRATION_ENTRY_SIZE, FeeConfiguration, LedgerEntryRentChange, RentFeeConfiguration, TransactionResources, WriteFeeConfiguration};
+use soroban_env_host::xdr::ExpirationEntry;
+
+#[test]
+fn expiration_entry_size() {
+    let expiration_entry = LedgerEntry{
+        last_modified_ledger_seq: 0,
+        data: LedgerEntryData::Expiration(ExpirationEntry{
+            key_hash: Hash([0; 32]),
+            expiration_ledger_seq: 0,
+        }),
+        ext: LedgerEntryExt::V0,
+    };
+    assert_eq!(EXPIRATION_ENTRY_SIZE, expiration_entry.to_xdr().unwrap().len() as u32)
+
+}
 
 #[test]
 fn resource_fee_computation() {