diff --git a/graphql/extension/README.md b/graphql/extension/README.md
index f94bcc4..0525a6b 100644
--- a/graphql/extension/README.md
+++ b/graphql/extension/README.md
@@ -11,7 +11,7 @@ gqlServer.Use(RecursionLimitByTypeAndField(1))
 ```
 
 This allow only one of each "type.field" field access in a query. For following examples,
-consider that both root `user` and `User.friends` returns a type `User` (although firends may return a list).
+consider that both root `user` and `User.friends` returns a type `User` (although friends may return a list).
 
 Allows:
 ```graphql
diff --git a/graphql/extension/extension.go b/graphql/extension/extension.go
index 6d027a4..946fffd 100644
--- a/graphql/extension/extension.go
+++ b/graphql/extension/extension.go
@@ -65,7 +65,7 @@ func checkRecursionLimitByTypeAndField(rCtx recursionContext, typeName string, s
 		if newCount > rCtx.maxRecursion {
 			return gqlerror.Errorf("too many nesting on %s.%s", nesting.parentTypeName, nesting.childFieldName)
 		}
-		rCtx.typeAndFieldCount[nesting] += newCount
+		rCtx.typeAndFieldCount[nesting] = newCount
 		err := checkRecursionLimitByTypeAndField(rCtx, collectedField.Definition.Type.Name(), collectedField.SelectionSet)
 		if err != nil {
 			return err
diff --git a/graphql/extension/extension_test.go b/graphql/extension/extension_test.go
index 5982d0b..a4a7921 100644
--- a/graphql/extension/extension_test.go
+++ b/graphql/extension/extension_test.go
@@ -7,7 +7,7 @@ import (
 
 	"github.com/99designs/gqlgen/graphql"
 	"github.com/99designs/gqlgen/graphql/executor"
-	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/assert"
 	"github.com/vektah/gqlparser/v2"
 	"github.com/vektah/gqlparser/v2/ast"
 	"github.com/vektah/gqlparser/v2/gqlerror"
@@ -62,7 +62,7 @@ func TestRecursionLimitByTypeAndField(t *testing.T) {
 				Query:         queries,
 				OperationName: tt.operationName,
 			})
-			require.Equal(t, err, tt.expectedErr)
+			assert.Equal(t, tt.expectedErr, err)
 		})
 	}
 }
@@ -72,7 +72,7 @@ var sources = []*ast.Source{
 }
 var parsedSchema = gqlparser.MustLoadSchema(sources...)
 
-var _ graphql.ExecutableSchema = &executableSchema{}
+var _ graphql.ExecutableSchema = executableSchema{}
 
 type executableSchema struct{}