diff --git a/pkg/interop/doc.go b/pkg/interop/doc.go
index 8031b775a..6743430db 100644
--- a/pkg/interop/doc.go
+++ b/pkg/interop/doc.go
@@ -16,7 +16,7 @@ correspond to smartcontract and VM types:
 	non-byte slice - Array
 	map[K]V - map
 Other types are defined explicitly in this pkg:
-	Hash160, Hash256, InteropInterface, PublicKey, Signature
+	Hash160, Hash256, Interface, PublicKey, Signature
 
 Note that unless written otherwise structures defined in this packages can't be
 correctly created by new() or composite literals, they should be received from
diff --git a/pkg/interop/iterator/iterator.go b/pkg/interop/iterator/iterator.go
index 33a78d563..778bc33f7 100644
--- a/pkg/interop/iterator/iterator.go
+++ b/pkg/interop/iterator/iterator.go
@@ -6,14 +6,15 @@ package iterator
 import "github.com/nspcc-dev/neo-go/pkg/interop/neogointernal"
 
 // Iterator represents a Neo iterator, it's an opaque data structure that can
-// be properly created by Create or storage.Find. Unlike enumerators, iterators
-// range over key-value pairs, so it's convenient to use them for maps. This
-// structure is similar in function to Neo .net framework's Iterator.
+// be properly created by Create or storage.Find. Iterators range over key-value
+// pairs, so it's convenient to use them for maps. This structure is similar in
+// function to Neo .net framework's Iterator.
 type Iterator struct{}
 
-// Next advances the iterator returning true if it is was successful (and you
-// can use Key or Value) and false otherwise (and there are no more elements in
-// this Iterator). This function uses `System.Iterator.Next` syscall.
+// Next advances the iterator returning true if it was successful (and you
+// can use Value to get value for slices or key-value pair for maps) and false
+// otherwise (and there are no more elements in this Iterator). This function
+// uses `System.Iterator.Next` syscall.
 func Next(it Iterator) bool {
 	return neogointernal.Syscall1("System.Iterator.Next", it).(bool)
 }
diff --git a/pkg/interop/native/neo/neo.go b/pkg/interop/native/neo/neo.go
index 44003bbfe..47ff4b30f 100644
--- a/pkg/interop/native/neo/neo.go
+++ b/pkg/interop/native/neo/neo.go
@@ -1,7 +1,7 @@
 /*
 Package neo provides interface to NeoToken native contract.
 NEO token is special, it's not just a regular NEP-17 contract, it also
-provides access to chain-specific settings and implements commmittee
+provides access to chain-specific settings and implements committee
 voting system.
 */
 package neo