diff --git a/tests/by-util/test_whoami.rs b/tests/by-util/test_whoami.rs
index 3e8d5afa6..340c1434f 100644
--- a/tests/by-util/test_whoami.rs
+++ b/tests/by-util/test_whoami.rs
@@ -3,7 +3,6 @@
 //  * For the full copyright and license information, please view the LICENSE
 //  * file that was distributed with this source code.
 
-#[cfg(unix)]
 use crate::common::util::*;
 
 #[test]
@@ -34,7 +33,6 @@ fn test_normal_compare_id() {
 }
 
 #[test]
-#[cfg(unix)]
 fn test_normal_compare_env() {
     let whoami = whoami();
     if whoami == "nobody" {
diff --git a/tests/common/util.rs b/tests/common/util.rs
index 704e9b163..f3cdec010 100644
--- a/tests/common/util.rs
+++ b/tests/common/util.rs
@@ -1069,10 +1069,12 @@ pub fn whoami() -> String {
 
     // Use environment variable to get current user instead of
     // invoking `whoami` and fall back to user "nobody" on error.
-    std::env::var("USER").unwrap_or_else(|e| {
-        println!("{}: {}, using \"nobody\" instead", UUTILS_WARNING, e);
-        "nobody".to_string()
-    })
+    std::env::var("USER")
+        .or_else(|_| std::env::var("USERNAME"))
+        .unwrap_or_else(|e| {
+            println!("{}: {}, using \"nobody\" instead", UUTILS_WARNING, e);
+            "nobody".to_string()
+        })
 }
 
 /// Add prefix 'g' for `util_name` if not on linux