diff --git a/config/src/kura.rs b/config/src/kura.rs
index d99a5e97800..03c0cb4fb74 100644
--- a/config/src/kura.rs
+++ b/config/src/kura.rs
@@ -1,5 +1,4 @@
 //! Module for kura-related configuration and structs
-use std::path::PathBuf;
 
 use eyre::Result;
 use iroha_config_base::derive::{Documented, Proxy};
@@ -15,7 +14,7 @@ pub struct Configuration {
     /// Initialization mode: `strict` or `fast`.
     pub init_mode: Mode,
     /// Path to the existing block store folder or path to create new folder.
-    pub block_store_path: PathBuf,
+    pub block_store_path: String,
     /// Whether or not new blocks be outputted to a file called blocks.json.
     pub debug_output_new_blocks: bool,
 }
diff --git a/scripts/test_env.py b/scripts/test_env.py
index 21db25afa48..458fc0ae6c1 100755
--- a/scripts/test_env.py
+++ b/scripts/test_env.py
@@ -119,8 +119,7 @@ def run(self, is_genesis: bool = False):
         os.environ["KURA_BLOCK_STORE_PATH"] = str(peer_dir.joinpath("storage"))
         os.environ["SNAPSHOT_DIR_PATH"] = str(peer_dir.joinpath("storage"))
         os.environ["LOG_LEVEL"] = "TRACE"
-        # FIXME: should it be JSON here?
-        os.environ["LOG_FORMAT"] = "json"
+        os.environ["LOG_FORMAT"] = "\"pretty\""
         os.environ["LOG_TOKIO_CONSOLE_ADDR"] = f"{self.host_ip}:{self.tokio_console_port}"
         os.environ["IROHA_PUBLIC_KEY"] = self.public_key
         os.environ["IROHA_PRIVATE_KEY"] = self.private_key
@@ -130,7 +129,7 @@ def run(self, is_genesis: bool = False):
 
         genesis_arg = "--submit-genesis" if is_genesis else ""
         # FD never gets closed
-        log_file = open(peer_dir.joinpath("log.json"), "w")
+        log_file = open(peer_dir.joinpath(".log"), "w")
         # These processes are created detached from the parent process already
         subprocess.Popen([self.name, genesis_arg], executable=f"{self.out_dir}/peers/iroha",
                     stdout=log_file, stderr=subprocess.STDOUT)