diff --git a/src/common.rs b/src/common.rs
index 23612488c..7e872ff7e 100644
--- a/src/common.rs
+++ b/src/common.rs
@@ -902,7 +902,10 @@ pub fn get_sysinfo() -> serde_json::Value {
     });
     #[cfg(not(any(target_os = "android", target_os = "ios")))]
     {
-        out["username"] = json!(crate::platform::get_active_username());
+        let username = crate::platform::get_active_username();
+        if !username.is_empty() && (!cfg!(windows) || username != "SYSTEM") {
+            out["username"] = json!(username);
+        }
     }
     out
 }