diff --git a/blockchain/validate.go b/blockchain/validate.go
index 5e24405e..1470a41c 100644
--- a/blockchain/validate.go
+++ b/blockchain/validate.go
@@ -1230,7 +1230,7 @@ func (b *BlockChain) checkConnectBlock(node *blockNode, block *btcutil.Block, vi
 	if csvState == ThresholdActive {
 		// If the CSV soft-fork is now active, then modify the
 		// scriptFlags to ensure that the CSV op code is properly
-		// validated during the script checks bleow.
+		// validated during the script checks below.
 		scriptFlags |= txscript.ScriptVerifyCheckSequenceVerify
 
 		// We obtain the MTP of the *previous* block in order to
diff --git a/cmd/addblock/config.go b/cmd/addblock/config.go
index 51cd6c7e..3f1c7c93 100644
--- a/cmd/addblock/config.go
+++ b/cmd/addblock/config.go
@@ -31,7 +31,7 @@ var (
 	activeNetParams = &chaincfg.MainNetParams
 )
 
-// config defines the configuration options for findcheckpoint.
+// config defines the configuration options for addblock.
 //
 // See loadConfig for details on the configuration load process.
 type config struct {
diff --git a/params.go b/params.go
index b4d1453d..a3e51640 100644
--- a/params.go
+++ b/params.go
@@ -21,7 +21,7 @@ type params struct {
 }
 
 // mainNetParams contains parameters specific to the main network
-// (wire.MainNet).  NOTE: The RPC port is intentionally different than the
+// (wire.MainNet).  NOTE: The RPC port is intentionally different from the
 // reference implementation because btcd does not handle wallet requests.  The
 // separate wallet process listens on the well-known port and forwards requests
 // it does not handle on to btcd.  This approach allows the wallet process
@@ -41,7 +41,7 @@ var regressionNetParams = params{
 }
 
 // testNet3Params contains parameters specific to the test network (version 3)
-// (wire.TestNet3).  NOTE: The RPC port is intentionally different than the
+// (wire.TestNet3).  NOTE: The RPC port is intentionally different from the
 // reference implementation - see the mainNetParams comment for details.
 var testNet3Params = params{
 	Params:  &chaincfg.TestNet3Params,