diff --git a/zcash_primitives/src/block.rs b/zcash_primitives/src/block.rs
index 1304192d6..8ded03fc4 100644
--- a/zcash_primitives/src/block.rs
+++ b/zcash_primitives/src/block.rs
@@ -9,9 +9,18 @@ use zcash_encoding::Vector;
 
 pub use equihash;
 
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
+#[derive(Clone, Copy, PartialEq, Eq, Hash)]
 pub struct BlockHash(pub [u8; 32]);
 
+impl fmt::Debug for BlockHash {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        // The (byte-flipped) hex string is more useful than the raw bytes, because we can
+        // look that up in RPC methods and block explorers.
+        let block_hash_str = self.to_string();
+        f.debug_tuple("BlockHash").field(&block_hash_str).finish()
+    }
+}
+
 impl fmt::Display for BlockHash {
     fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
         let mut data = self.0;
diff --git a/zcash_primitives/src/transaction/mod.rs b/zcash_primitives/src/transaction/mod.rs
index 885116b32..2495822e6 100644
--- a/zcash_primitives/src/transaction/mod.rs
+++ b/zcash_primitives/src/transaction/mod.rs
@@ -61,9 +61,18 @@ const ZFUTURE_VERSION_GROUP_ID: u32 = 0xFFFFFFFF;
 #[cfg(feature = "zfuture")]
 const ZFUTURE_TX_VERSION: u32 = 0x0000FFFF;
 
-#[derive(Clone, Copy, Debug, PartialOrd, Ord, PartialEq, Eq, Hash)]
+#[derive(Clone, Copy, PartialOrd, Ord, PartialEq, Eq, Hash)]
 pub struct TxId([u8; 32]);
 
+impl fmt::Debug for TxId {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        // The (byte-flipped) hex string is more useful than the raw bytes, because we can
+        // look that up in RPC methods and block explorers.
+        let txid_str = self.to_string();
+        f.debug_tuple("TxId").field(&txid_str).finish()
+    }
+}
+
 impl fmt::Display for TxId {
     fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
         let mut data = self.0;