diff --git a/tests/test_framework/blockchain_node.py b/tests/test_framework/blockchain_node.py
index 4d28b08..e25a274 100644
--- a/tests/test_framework/blockchain_node.py
+++ b/tests/test_framework/blockchain_node.py
@@ -128,6 +128,8 @@ class TestNode:
         poll_per_s = 4
         for _ in range(poll_per_s * self.rpc_timeout):
             if self.process.poll() is not None:
+                self.stderr.seek(0)
+                self.stdout.seek(0)
                 raise FailedToStartError(
                     self._node_msg(
                         "exited with status {} during initialization \n\nstderr: {}\n\nstdout: {}\n\n".format(