diff --git a/comment_on_pr.sh b/comment_on_pr.sh
index 99827ed..af27a46 100755
--- a/comment_on_pr.sh
+++ b/comment_on_pr.sh
@@ -147,7 +147,7 @@ if [ -z "$COMMENT_ID" ]; then
 else
   log "Editing comment $COMMENT_ID"
   curl -o - -X 'PATCH' \
-    "$GITHUB_API_URL/repos/$GITHUB_REPOSITORY/issues/comments/$COMMENT_ID" \
+    "$GITHUB_API_URL/repos/$GITHUB_REPOSITORY/issues/$PR_ID/comments/$COMMENT_ID" \
     -H 'Accept: application/json' \
     -H "Authorization: token $GITHUB_TOKEN" \
     -H 'Content-Type: application/json' \