diff --git a/crates/lox-library/src/proto/positive_report.rs b/crates/lox-library/src/proto/positive_report.rs
index b43841a..03d75c2 100644
--- a/crates/lox-library/src/proto/positive_report.rs
+++ b/crates/lox-library/src/proto/positive_report.rs
@@ -235,7 +235,7 @@ impl BridgeAuth {
     pub fn handle_positive_report(&mut self, req: Request) -> Result<(), ProofError> {
         let A: &RistrettoPoint = &CMZ_A;
 
-        if req.P.is_identity() {
+        if req.P.is_identity() || req.H.is_identity() {
             return Err(ProofError::VerificationFailure);
         }