diff --git a/src/common/error/tests/ext.rs b/src/common/error/tests/ext.rs
index 82f2ee4440..d22ad96a43 100644
--- a/src/common/error/tests/ext.rs
+++ b/src/common/error/tests/ext.rs
@@ -84,29 +84,32 @@ fn test_to_string() {
     assert_eq!(result.unwrap_err().to_string(), "<root cause>");
 }
 
+fn normalize_path(s: &str) -> String {
+    s.replace('\\', "/")
+}
+
 #[test]
 fn test_debug_format() {
     let result = normal_error();
     let debug_output = format!("{:?}", result.unwrap_err());
-    let normalized_output = debug_output.replace('\\', "/");
+
     assert_eq!(
-        normalized_output,
+        normalize_path(&debug_output),
         format!(
             r#"0: A normal error with "display" attribute, message "blabla", at {}:55:22
 1: PlainError {{ msg: "<root cause>", status_code: Unexpected }}"#,
-            file!()
+            normalize_path(file!())
         )
     );
 
     let result = transparent_error();
     let debug_output = format!("{:?}", result.unwrap_err());
-    let normalized_output = debug_output.replace('\\', "/");
     assert_eq!(
-        normalized_output,
+        normalize_path(&debug_output),
         format!(
             r#"0: <transparent>, at {}:60:5
 1: PlainError {{ msg: "<root cause>", status_code: Unexpected }}"#,
-            file!()
+            normalize_path(file!())
         )
     );
 }