diff --git a/bin/node/runtime/src/lib.rs b/bin/node/runtime/src/lib.rs
index b663b6de27582..92e5dfa7830af 100644
--- a/bin/node/runtime/src/lib.rs
+++ b/bin/node/runtime/src/lib.rs
@@ -979,7 +979,7 @@ impl pallet_lottery::Config for Runtime {
 parameter_types! {
 	pub const AssetDepositBase: Balance = 100 * DOLLARS;
 	pub const AssetDepositPerZombie: Balance = 1 * DOLLARS;
-	pub const StringLimit: usize = 50;
+	pub const StringLimit: u32 = 50;
 	pub const MetadataDepositBase: Balance = 10 * DOLLARS;
 	pub const MetadataDepositPerByte: Balance = 1 * DOLLARS;
 }
diff --git a/frame/assets/src/benchmarking.rs b/frame/assets/src/benchmarking.rs
index a3499e1a11207..90b6f65b39890 100644
--- a/frame/assets/src/benchmarking.rs
+++ b/frame/assets/src/benchmarking.rs
@@ -215,8 +215,8 @@ benchmarks! {
 	}
 
 	set_metadata {
-		let n in 0 .. T::StringLimit::get() as u32;
-		let s in 0 .. T::StringLimit::get() as u32;
+		let n in 0 .. T::StringLimit::get();
+		let s in 0 .. T::StringLimit::get();
 
 		let name = vec![0u8; n as usize];
 		let symbol = vec![0u8; s as usize];