diff --git a/crates/utils/tcbinfo-updater/src/main.rs b/crates/utils/tcbinfo-updater/src/main.rs
index 9e19449..1a19362 100644
--- a/crates/utils/tcbinfo-updater/src/main.rs
+++ b/crates/utils/tcbinfo-updater/src/main.rs
@@ -98,12 +98,14 @@ async fn upsert_tcbinfo() -> Result<(), &'static str>  {
 }
 
 fn verify_signature (tcbinfo: Value, key: VerifyingKey)  {
-    let tcbinfo_json = tcbinfo.as_str();
-    if let Err(e) = tcbinfo_json {
-        println!("{tcbinfo:?}");
-    }
-    let signed_tcbinfo = SignedTcbInfo::try_from().expect("tcbinfo string parsing failed");
+    let tcbinfo_str = tcbinfo.as_str();
+    if let Some(st) = tcbinfo_str {
+    let signed_tcbinfo = SignedTcbInfo::try_from(st).expect("tcbinfo string parsing failed");
       signed_tcbinfo.verify(Some(&key), None).expect("could not verify signature");
+    }
+    else {
+            println!("{tcbinfo:?}");
+    }
     
 }