diff --git a/tests/rpcclient/ethcallsigs.nim b/tests/rpcclient/ethcallsigs.nim
index 03df7edb3..f881e7df6 100644
--- a/tests/rpcclient/ethcallsigs.nim
+++ b/tests/rpcclient/ethcallsigs.nim
@@ -27,7 +27,7 @@ proc eth_gasPrice(): HexQuantityStr
 proc eth_accounts(): seq[EthAddressStr]
 proc eth_blockNumber(): HexQuantityStr
 proc eth_getBalance(data: EthAddressStr, quantityTag: string): HexQuantityStr
-proc eth_getStorageAt(data: EthAddressStr, quantity: HexQuantityStr, quantityTag: string): seq[byte]
+proc eth_getStorageAt(data: EthAddressStr, quantity: HexQuantityStr, quantityTag: string): HexDataStr
 proc eth_getTransactionCount(data: EthAddressStr, quantityTag: string): HexQuantityStr
 proc eth_getBlockTransactionCountByHash(data: Hash256): HexQuantityStr
 proc eth_getBlockTransactionCountByNumber(quantityTag: string): HexQuantityStr
diff --git a/tests/test_rpc.nim b/tests/test_rpc.nim
index b2440a0d9..a946ba3ed 100644
--- a/tests/test_rpc.nim
+++ b/tests/test_rpc.nim
@@ -258,7 +258,7 @@ proc rpcMain*() =
 
     test "eth_getStorageAt":
       let res = await client.eth_getStorageAt(ethAddressStr("0xfff33a3bd36abdbd412707b8e310d6011454a7ae"), hexQuantityStr "0x0", "0x0")
-      check hexDataStr(0.u256).string == hexDataStr(res).string
+      check hexDataStr(0.u256).string == res.string
 
     test "eth_getTransactionCount":
       let res = await client.eth_getTransactionCount(ethAddressStr("0xfff7ac99c8e4feb60c9750054bdc14ce1857f181"), "0x0")