diff --git a/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum/EthereumMultistream.kt b/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum/EthereumMultistream.kt
index fc6426d3..259e88a6 100644
--- a/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum/EthereumMultistream.kt
+++ b/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum/EthereumMultistream.kt
@@ -103,7 +103,7 @@ open class EthereumMultistream(
         upstreams.filter {
             matcher.matches(it)
         }.takeIf { ups ->
-            ups.all { it.isGrpc() }
+            ups.isNotEmpty() && ups.all { it.isGrpc() }
         }?.map {
             it as GrpcUpstream
         }?.map {
diff --git a/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum_pos/EthereumPosMultiStream.kt b/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum_pos/EthereumPosMultiStream.kt
index 959b3485..cd872db7 100644
--- a/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum_pos/EthereumPosMultiStream.kt
+++ b/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum_pos/EthereumPosMultiStream.kt
@@ -98,7 +98,7 @@ open class EthereumPosMultiStream(
         upstreams.filter {
             matcher.matches(it)
         }.takeIf { ups ->
-            ups.all { it.isGrpc() }
+            ups.isNotEmpty() && ups.all { it.isGrpc() }
         }?.map {
             it as GrpcUpstream
         }?.map {