diff --git a/src/views/preview/comment/comment.jsx b/src/views/preview/comment/comment.jsx
index fcfaa8930..22b5c28a2 100644
--- a/src/views/preview/comment/comment.jsx
+++ b/src/views/preview/comment/comment.jsx
@@ -196,7 +196,7 @@ Comment.propTypes = {
     onAddComment: PropTypes.func,
     onDelete: PropTypes.func,
     onReport: PropTypes.func,
-    projectId: PropTypes.number,
+    projectId: PropTypes.string,
     reported: PropTypes.bool
 };
 
diff --git a/src/views/preview/comment/compose-comment.jsx b/src/views/preview/comment/compose-comment.jsx
index 0db753c58..73f07733c 100644
--- a/src/views/preview/comment/compose-comment.jsx
+++ b/src/views/preview/comment/compose-comment.jsx
@@ -183,7 +183,7 @@ ComposeComment.propTypes = {
     onAddComment: PropTypes.func,
     onCancel: PropTypes.func,
     parentId: PropTypes.number,
-    projectId: PropTypes.number,
+    projectId: PropTypes.string,
     user: PropTypes.shape({
         id: PropTypes.number,
         username: PropTypes.string,