diff --git a/README.md b/README.md
index 607b07a..ff0775d 100644
--- a/README.md
+++ b/README.md
@@ -54,7 +54,7 @@ func main() {
 ```
 
 ## tests
-all the tests are currently run on an empty private repository.
+all the tests are currently running on an empty private repository.
 ```shell script
 export ZENHUB_SECRET="zenhub-token"
 export GITHUB_SECRET="github-token"
diff --git a/issues.go b/issues.go
index a0a9054..d9f873b 100644
--- a/issues.go
+++ b/issues.go
@@ -216,7 +216,7 @@ func (c *Client) MoveIssueOld(repositoryID, issueNumber int, move MoveRequest) (
 }
 
 type Estimate struct {
-	Value *int `json:"estimate,omitempty"`
+	Value *int `json:"value,omitempty"`
 }
 
 // GetValue returns the Value field if it's non-nil, zero value otherwise.