diff --git a/client/src-tauri/src/audio/windows_loopback.rs b/client/src-tauri/src/audio/windows_loopback.rs
index d37078d..b082698 100644
--- a/client/src-tauri/src/audio/windows_loopback.rs
+++ b/client/src-tauri/src/audio/windows_loopback.rs
@@ -188,8 +188,9 @@ where
     F: FnMut(&[f32]),
 {
     let hr = initialize_mta();
-    if hr != 0 {
-        return Err(Error::AudioCapture(format!("WASAPI init failed: HRESULT 0x{:08X}", hr)));
+    let hr_value: i32 = hr.0;
+    if hr_value != 0 {
+        return Err(Error::AudioCapture(format!("WASAPI init failed: HRESULT 0x{:08X}", hr_value)));
     }
 
     let result: Result<()> = (|| {