diff --git a/src/github/issue.rs b/src/github/issue.rs
index c46cfaed..43984342 100644
--- a/src/github/issue.rs
+++ b/src/github/issue.rs
@@ -632,7 +632,7 @@ impl Issue {
         let review = client
             .json(client.get(&review_url))
             .await
-            .context("unable to fetch review")?;
+            .with_context(|| format!("unable to fetch review ({review_id})"))?;
         Ok(review)
     }
 }
@@ -663,10 +663,15 @@ pub struct Comment {
 #[derive(Debug, serde::Deserialize, Eq, PartialEq)]
 #[serde(rename_all = "snake_case")]
 pub enum PullRequestReviewState {
+    #[serde(alias = "APPROVED")]
     Approved,
+    #[serde(alias = "CHANGES_REQUESTED")]
     ChangesRequested,
+    #[serde(alias = "COMMENTED")]
     Commented,
+    #[serde(alias = "DISMISSED")]
     Dismissed,
+    #[serde(alias = "PENDING")]
     Pending,
 }
 
diff --git a/src/handlers/review_changes_since.rs b/src/handlers/review_changes_since.rs
index d8c2e0af..bb287c66 100644
--- a/src/handlers/review_changes_since.rs
+++ b/src/handlers/review_changes_since.rs
@@ -49,6 +49,12 @@ pub(crate) async fn handle(
             ..
         },
     ) = event
+        && (
+            // review
+            event.comment.pr_review_state.is_some()
+            // review comments
+            || event.comment.pull_request_review_id.is_some()
+        )
     {
         let issue_repo = event.issue.repository();
         let pr_num = event.issue.number;
@@ -58,8 +64,7 @@ pub(crate) async fn handle(
 
         let link = format!("https://{host}/gh-changes-since/{issue_repo}/{pr_num}/{base}..{head}");
 
-        if event.comment.pull_request_review_id.is_none() && event.comment.pr_review_state.is_some()
-        {
+        if event.comment.pr_review_state.is_some() {
             // this is a review (not a review comment)
 
             {