diff --git a/ethcore/src/ethereum/ethash.rs b/ethcore/src/ethereum/ethash.rs
index 6235255e4..fc7b27403 100644
--- a/ethcore/src/ethereum/ethash.rs
+++ b/ethcore/src/ethereum/ethash.rs
@@ -187,7 +187,14 @@ impl Engine for Arc<Ethash> {
 
 	/// Additional engine-specific information for the user/developer concerning `header`.
 	fn extra_info(&self, header: &Header) -> BTreeMap<String, String> {
-		map!["nonce".to_owned() => format!("0x{}", header.nonce().hex()), "mixHash".to_owned() => format!("0x{}", header.mix_hash().hex())]
+		if header.seal().len() == self.seal_fields() {
+			map![
+				"nonce".to_owned() => format!("0x{}", header.nonce().hex()),
+				"mixHash".to_owned() => format!("0x{}", header.mix_hash().hex())
+			]
+		} else {
+			BTreeMap::default()
+		}
 	}
 
 	fn schedule(&self, block_number: BlockNumber) -> Schedule {
diff --git a/util/bloom/src/lib.rs b/util/bloom/src/lib.rs
index 16e0e5368..91897ed44 100644
--- a/util/bloom/src/lib.rs
+++ b/util/bloom/src/lib.rs
@@ -37,9 +37,9 @@ struct BitVecJournal {
 
 impl BitVecJournal {
 	pub fn new(size: usize) -> BitVecJournal {
-		let extra = if size % 8 > 0  { 1 } else { 0 };
+		let extra = if size % 64 > 0  { 1 } else { 0 };
 		BitVecJournal {
-			elems: vec![0u64; size / 8 + extra],
+			elems: vec![0u64; size / 64 + extra],
 			journal: HashSet::new(),
 		}
 	}