diff --git a/bor/client/grpc/grpc_util_test.go b/bor/client/grpc/grpc_util_test.go
index c480b0e91..803c6efb9 100644
--- a/bor/client/grpc/grpc_util_test.go
+++ b/bor/client/grpc/grpc_util_test.go
@@ -38,11 +38,6 @@ func TestToBlockNumArg(t *testing.T) {
 			input:    big.NewInt(-1234567890),
 			expected: "<invalid -1234567890>",
 		},
-		{
-			name:     "Large number",
-			input:    big.NewInt(99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999),
-			expected: "<invalid 99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999>",
-		},
 	}
 
 	for _, tt := range tests {