diff --git a/substrate/wasm-runtime/polkadot/src/support/storage.rs b/substrate/wasm-runtime/polkadot/src/support/storage.rs
index e21f41bfd4..201556fec2 100644
--- a/substrate/wasm-runtime/polkadot/src/support/storage.rs
+++ b/substrate/wasm-runtime/polkadot/src/support/storage.rs
@@ -87,7 +87,7 @@ pub fn take_or_else<T: Slicable + Sized, F: FnOnce() -> T>(key: &[u8], default_v
 /// Check to see if `key` has an explicit entry in storage.
 pub fn exists(key: &[u8]) -> bool {
 	let mut x = [0u8; 1];
-	runtime_std::read_storage(&twox_128(key)[..], &mut x[..], 0) == 1
+	runtime_std::read_storage(&twox_128(key)[..], &mut x[..], 0) >= 1
 }
 
 /// Ensure `key` has no explicit entry in storage.
diff --git a/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_polkadot.compact.wasm b/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_polkadot.compact.wasm
index 1f94e55115..c080bcdba2 100644
Binary files a/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_polkadot.compact.wasm and b/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_polkadot.compact.wasm differ
diff --git a/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_polkadot.wasm b/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_polkadot.wasm
index 4fa5a8ae0d..9dc89f117b 100644
Binary files a/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_polkadot.wasm and b/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_polkadot.wasm differ