diff --git a/crates/interpreter/src/gas/calc.rs b/crates/interpreter/src/gas/calc.rs
index b9af574a3b..b5fc98fa45 100644
--- a/crates/interpreter/src/gas/calc.rs
+++ b/crates/interpreter/src/gas/calc.rs
@@ -180,7 +180,7 @@ pub const fn sload_cost(spec_id: SpecId, is_cold: bool) -> u64 {
         }
     } else if spec_id.is_enabled_in(SpecId::ISTANBUL) {
         // EIP-1884: Repricing for trie-size-dependent opcodes
-        INSTANBUL_SLOAD_GAS
+        ISTANBUL_SLOAD_GAS
     } else if spec_id.is_enabled_in(SpecId::TANGERINE) {
         // EIP-150: Gas cost changes for IO-heavy operations
         200
@@ -202,7 +202,7 @@ pub fn sstore_cost(spec_id: SpecId, vals: &SStoreResult, is_cold: bool) -> u64 {
         gas_cost
     } else if spec_id.is_enabled_in(SpecId::ISTANBUL) {
         // Istanbul logic
-        istanbul_sstore_cost::<INSTANBUL_SLOAD_GAS, SSTORE_RESET>(vals)
+        istanbul_sstore_cost::<ISTANBUL_SLOAD_GAS, SSTORE_RESET>(vals)
     } else {
         // Frontier logic
         frontier_sstore_cost(vals)
diff --git a/crates/interpreter/src/gas/constants.rs b/crates/interpreter/src/gas/constants.rs
index a9dcb0a537..85d0f4abbc 100644
--- a/crates/interpreter/src/gas/constants.rs
+++ b/crates/interpreter/src/gas/constants.rs
@@ -28,7 +28,7 @@ pub const BLOCKHASH: u64 = 20;
 pub const CODEDEPOSIT: u64 = 200;
 
 /// EIP-1884: Repricing for trie-size-dependent opcodes
-pub const INSTANBUL_SLOAD_GAS: u64 = 800;
+pub const ISTANBUL_SLOAD_GAS: u64 = 800;
 pub const SSTORE_SET: u64 = 20000;
 pub const SSTORE_RESET: u64 = 5000;
 pub const REFUND_SSTORE_CLEARS: i64 = 15000;