diff --git a/keystore2/src/fuzzers/legacy_blob_fuzzer.rs b/keystore2/src/fuzzers/legacy_blob_fuzzer.rs
index 5c89ca4..7e3e848 100644
--- a/keystore2/src/fuzzers/legacy_blob_fuzzer.rs
+++ b/keystore2/src/fuzzers/legacy_blob_fuzzer.rs
@@ -19,6 +19,8 @@
 use keystore2::legacy_blob::LegacyBlobLoader;
 
 fuzz_target!(|data: &[u8]| {
-    let string = data.iter().filter_map(|c| std::char::from_u32(*c as u32)).collect::<String>();
-    let _res = LegacyBlobLoader::decode_alias(&string);
+    if !data.is_empty() {
+        let string = data.iter().filter_map(|c| std::char::from_u32(*c as u32)).collect::<String>();
+        let _res = LegacyBlobLoader::decode_alias(&string);
+    }
 });