diff --git a/integration/hurl/tests_failed/output_directory.err.pattern b/integration/hurl/tests_failed/output_directory.err.pattern
index 206196f51..bb6ae327c 100644
--- a/integration/hurl/tests_failed/output_directory.err.pattern
+++ b/integration/hurl/tests_failed/output_directory.err.pattern
@@ -2,5 +2,5 @@ error: IO Error
   --> tests_ok/hello.hurl:17:1
    |
 17 | GET http://localhost:8000/hello
-   | ^ build<<<.*?>>>tmp can not be written (<<<.*?>>>)
+   | ^ build<<<[/\\]>>>tmp can not be written (<<<.*?>>>)
    |
diff --git a/integration/hurl/tests_failed/runner_errors.err.pattern b/integration/hurl/tests_failed/runner_errors.err.pattern
index 69b5823c4..f91ae18d5 100644
--- a/integration/hurl/tests_failed/runner_errors.err.pattern
+++ b/integration/hurl/tests_failed/runner_errors.err.pattern
@@ -65,7 +65,7 @@ error: File write access
     | GET http://localhost:8000/runner_errors
     | ...
  40 | output: undefined/output
-    |         ^^^^^^^^^^^^^^^^ tests_failed<<<.*?>>>undefined<<<.*?>>>output can not be written (<<<.*?>>>)
+    |         ^^^^^^^^^^^^^^^^ tests_failed<<<[/\\]>>>undefined<<<[/\\]>>>output can not be written (<<<.*?>>>)
     |
 
 error: Filter error
diff --git a/integration/hurl/tests_failed/runner_errors_color.err.pattern b/integration/hurl/tests_failed/runner_errors_color.err.pattern
index dee5d5114..70c549d14 100644
--- a/integration/hurl/tests_failed/runner_errors_color.err.pattern
+++ b/integration/hurl/tests_failed/runner_errors_color.err.pattern
@@ -65,7 +65,7 @@
     | GET http://localhost:8000/runner_errors
     | ...
  40 | output: undefined/output
-    |         ^^^^^^^^^^^^^^^^ tests_failed<<<.*?>>>undefined<<<.*?>>>output can not be written (<<<.*?>>>)
+    |         ^^^^^^^^^^^^^^^^ tests_failed<<<[/\\]>>>undefined<<<[/\\]>>>output can not be written (<<<.*?>>>)
     |
 
 error: Filter error