diff --git a/electrumx/lib/merkle.py b/electrumx/lib/merkle.py
index 439e0a7..c0119ba 100644
--- a/electrumx/lib/merkle.py
+++ b/electrumx/lib/merkle.py
@@ -129,7 +129,7 @@ class Merkle(object):
         level cached.
 
         To maximally reduce the amount of data hashed in computing a
-        markle branch, cache a tree of depth N at level N // 2.
+        merkle branch, cache a tree of depth N at level N // 2.
 
         level is a list of hashes in the middle of the tree (returned
         by level())
diff --git a/electrumx/server/session.py b/electrumx/server/session.py
index 631e2e9..b2bd7a6 100644
--- a/electrumx/server/session.py
+++ b/electrumx/server/session.py
@@ -1183,7 +1183,7 @@ class ElectrumX(SessionBase):
         return branch
 
     async def transaction_merkle(self, tx_hash, height):
-        '''Return the markle branch to a confirmed transaction given its hash
+        '''Return the merkle branch to a confirmed transaction given its hash
         and height.
 
         tx_hash: the transaction hash as a hexadecimal string
diff --git a/tests/lib/test_merkle.py b/tests/lib/test_merkle.py
index 35b9c65..6a139d6 100644
--- a/tests/lib/test_merkle.py
+++ b/tests/lib/test_merkle.py
@@ -234,7 +234,7 @@ async def test_truncation_bad():
 
 
 @pytest.mark.asyncio
-async def test_markle_cache_bad():
+async def test_merkle_cache_bad():
     length = 23
     source = Source(length).hashes
     cache = MerkleCache(merkle, source)