diff --git a/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum/subscribe/EthereumLabelsDetector.kt b/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum/subscribe/EthereumLabelsDetector.kt
index 5ae182c1..3277c59d 100644
--- a/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum/subscribe/EthereumLabelsDetector.kt
+++ b/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum/subscribe/EthereumLabelsDetector.kt
@@ -6,6 +6,7 @@ import io.emeraldpay.dshackle.Global.Companion.objectMapper
 import io.emeraldpay.dshackle.reader.JsonRpcReader
 import io.emeraldpay.dshackle.upstream.rpcclient.JsonRpcRequest
 import io.emeraldpay.dshackle.upstream.rpcclient.JsonRpcResponse
+import io.emeraldpay.etherjar.hex.HexQuantity
 import reactor.core.publisher.Flux
 import reactor.core.publisher.Mono
 
@@ -39,7 +40,17 @@ class EthereumLabelsDetector(
 
     private fun detectArchiveNode(): Mono<Pair<String, String>> {
         return reader
-            .read(JsonRpcRequest("eth_getBalance", listOf("0x756F45E3FA69347A9A973A725E3C98bC4db0b5a0", "0x1")))
+            .read(JsonRpcRequest("eth_blockNumber", listOf()))
+            .flatMap(JsonRpcResponse::requireResult)
+            .flatMap {
+                val blockNum = HexQuantity.from(String(it).substring(3, it.size - 1).toLong(radix = 16) - 10_000) // this is definitely archive
+                reader.read(
+                    JsonRpcRequest(
+                        "eth_getBalance",
+                        listOf("0x756F45E3FA69347A9A973A725E3C98bC4db0b5a0", blockNum.toHex())
+                    )
+                )
+            }
             .flatMap(JsonRpcResponse::requireResult)
             .map { "archive" to "true" }
             .onErrorResume { Mono.empty() }
diff --git a/src/test/groovy/io/emeraldpay/dshackle/upstream/ethereum/EthereumLabelsDetectorSpec.groovy b/src/test/groovy/io/emeraldpay/dshackle/upstream/ethereum/EthereumLabelsDetectorSpec.groovy
index 77d5d597..41705455 100644
--- a/src/test/groovy/io/emeraldpay/dshackle/upstream/ethereum/EthereumLabelsDetectorSpec.groovy
+++ b/src/test/groovy/io/emeraldpay/dshackle/upstream/ethereum/EthereumLabelsDetectorSpec.groovy
@@ -21,7 +21,8 @@ class EthereumLabelsDetectorSpec extends Specification {
         def up = TestingCommons.upstream(
                 new ApiReaderMock().tap {
                     answer("web3_clientVersion", [], response)
-                    answer("eth_getBalance", ["0x756F45E3FA69347A9A973A725E3C98bC4db0b5a0", "0x1"], "")
+                    answer("eth_blockNumber", [], "0x10df3e5")
+                    answer("eth_getBalance", ["0x756F45E3FA69347A9A973A725E3C98bC4db0b5a0", "0x10dccd5"], "")
                 }
         )
         def detector = new EthereumLabelsDetector(up.getIngressReader())
@@ -50,7 +51,9 @@ class EthereumLabelsDetectorSpec extends Specification {
             1 * getIngressReader() >> Mock(Reader) {
                 1 * read(new JsonRpcRequest("web3_clientVersion", [])) >>
                         Mono.just(new JsonRpcResponse('no/v1.19.3+e8ac1da4/linux-x64/dotnet7.0.8'.getBytes(), null))
-                1 * read(new JsonRpcRequest("eth_getBalance", ["0x756F45E3FA69347A9A973A725E3C98bC4db0b5a0", "0x1"])) >>
+                1 * read(new JsonRpcRequest("eth_blockNumber", [])) >>
+                        Mono.just(new JsonRpcResponse("\"0x10df3e5\"".getBytes(), null))
+                1 * read(new JsonRpcRequest("eth_getBalance", ["0x756F45E3FA69347A9A973A725E3C98bC4db0b5a0", "0x10dccd5"])) >>
                         Mono.error(new RuntimeException())
             }
         }