diff --git a/src/test/groovy/io/emeraldpay/dshackle/rpc/NativeCallSpec.groovy b/src/test/groovy/io/emeraldpay/dshackle/rpc/NativeCallSpec.groovy
index 1d27097a..8a7c9e1d 100644
--- a/src/test/groovy/io/emeraldpay/dshackle/rpc/NativeCallSpec.groovy
+++ b/src/test/groovy/io/emeraldpay/dshackle/rpc/NativeCallSpec.groovy
@@ -167,6 +167,7 @@ class NativeCallSpec extends Specification {
                         .setSucceed(false)
                         .setErrorMessage("Failed to call 5: test test")
                         .setId(5)
+                        .setErrorCode(500)
                         .build())
                 .expectComplete()
                 .verify(Duration.ofSeconds(1))
@@ -182,6 +183,7 @@ class NativeCallSpec extends Specification {
                 .expectNext(BlockchainOuterClass.NativeCallReplyItem.newBuilder()
                         .setSucceed(false)
                         .setErrorMessage("test test")
+                        .setErrorCode(500)
                         .build())
                 .expectComplete()
                 .verify(Duration.ofSeconds(1))