diff --git a/src/codec/decoder/audio.rs b/src/codec/decoder/audio.rs
index a934dd4..42a37a6 100644
--- a/src/codec/decoder/audio.rs
+++ b/src/codec/decoder/audio.rs
@@ -22,9 +22,9 @@ impl Audio {
 		}
 	}
 
-	pub fn rate(&self) -> i32 {
+	pub fn rate(&self) -> u32 {
 		unsafe {
-			(*self.ptr).sample_rate as i32
+			(*self.ptr).sample_rate as u32
 		}
 	}