diff --git a/test/functional/test_framework/test_node.py b/test/functional/test_framework/test_node.py
index f2ef17ccb72..7ef3280ffcf 100755
--- a/test/functional/test_framework/test_node.py
+++ b/test/functional/test_framework/test_node.py
@@ -440,7 +440,7 @@ class TestNode():
 
         while True:
             found = True
-            with open(self.debug_log_path, encoding='utf-8') as dl:
+            with open(self.debug_log_path, encoding="utf-8", errors="replace") as dl:
                 dl.seek(prev_size)
                 log = dl.read()
             print_log = " - " + "\n - ".join(log.splitlines())