diff --git a/examples/rp235x/src/bin/pio_rotary_encoder_rxf.rs b/examples/rp235x/src/bin/pio_rotary_encoder_rxf.rs
index ccc601661..33499babb 100644
--- a/examples/rp235x/src/bin/pio_rotary_encoder_rxf.rs
+++ b/examples/rp235x/src/bin/pio_rotary_encoder_rxf.rs
@@ -88,8 +88,8 @@ impl<'d, T: Instance, const SM: usize> PioEncoder<'d, T, SM> {
         Self { sm }
     }
 
-    pub async fn read(&mut self) -> u32 {
-        self.sm.get_rxf_entry(0)
+    pub async fn read(&mut self) -> i32 {
+        self.sm.get_rxf_entry(0) as i32
     }
 }