diff --git a/docker/test/util/process_functional_tests_result.py b/docker/test/util/process_functional_tests_result.py
index aa2ea686c46..ec9e14b1430 100755
--- a/docker/test/util/process_functional_tests_result.py
+++ b/docker/test/util/process_functional_tests_result.py
@@ -116,7 +116,7 @@ def process_test_log(log_path, broken_tests):
             test[0],
             test[1],
             test[2],
-            "".join(test[3])[:4096].replace("\t", "\\t").replace("\n", "\\n"),
+            "".join(test[3])[:8192].replace("\t", "\\t").replace("\n", "\\n"),
         ]
         for test in test_results
     ]