diff --git a/plonky2/examples/fibonacci.rs b/plonky2/examples/fibonacci.rs
index 90e23295..ed4610ea 100644
--- a/plonky2/examples/fibonacci.rs
+++ b/plonky2/examples/fibonacci.rs
@@ -28,6 +28,7 @@ fn main() -> Result<()> {
 
     let fib_100 = F::from_canonical_u64(3736710860384812976);
     let fib_100_target = builder.constant(fib_100);
+    builder.register_public_input(fib_100_target);
 
     builder.connect(fib_100_target, cur_target);
 
@@ -35,5 +36,7 @@ fn main() -> Result<()> {
 
     let proof = data.prove(pw)?;
 
+    println!("Public inputs: {:?}", proof.clone().public_inputs);
+
     verify(proof, &data.verifier_only, &data.common)
 }