diff --git a/WatcherAgent/src/main.rs b/WatcherAgent/src/main.rs
index 28ccb82..cfd1ce4 100644
--- a/WatcherAgent/src/main.rs
+++ b/WatcherAgent/src/main.rs
@@ -467,10 +467,15 @@ fn get_cpu_temp() -> Option<f32> {
         None
     }
 
+    #[cfg(target_os = "windows")]
+    fn failed(hr: winapi::shared::winerror::HRESULT) -> bool {
+        hr < 0
+    }
+
     #[cfg(target_os = "windows")]
     {
         use com::runtime::init_runtime;
-        use com::sys::{CLSCTX_INPROC_SERVER, FAILED};
+        use com::sys::CLSCTX_INPROC_SERVER;
         use widestring::U16CString;
         use winapi::shared::rpcdce::*;
         use winapi::shared::wtypes::VT_I4;
@@ -566,7 +571,7 @@ fn get_cpu_temp() -> Option<f32> {
                     &mut returned,
                 );
 
-                if FAILED(hr) {
+                if failed(hr) {
                     eprintln!("Failed to enumerate WMI objects (HRESULT: {})", hr);
                     (*enumerator).Release();
                     continue;