diff --git a/src/forum.nim b/src/forum.nim
index aee5ad4..70baf54 100644
--- a/src/forum.nim
+++ b/src/forum.nim
@@ -151,7 +151,7 @@ proc checkLoggedIn(c: TForumData) =
     )
     c.previousVisitAt = personRow[1].parseInt
     let diff = getTime() - fromUnix(personRow[0].parseInt)
-    if diff.minutes > 30:
+    if diff.inMinutes > 30:
       c.previousVisitAt = personRow[0].parseInt
       db.exec(
         sql"""
@@ -238,7 +238,7 @@ proc verifyIdentHash(
   let newIdent = makeIdentHash(name, row[0], epoch, row[1])
   # Check that it hasn't expired.
   let diff = getTime() - epoch.fromUnix()
-  if diff.hours > 2:
+  if diff.inHours > 2:
     raise newForumError("Link expired")
   if newIdent != ident:
     raise newForumError("Invalid ident hash")
@@ -498,7 +498,7 @@ proc updatePost(c: TForumData, postId: int, content: string,
 
   # Verify that the current user has permissions to edit the specified post.
   let creation = fromUnix(postRow[1].parseInt)
-  let isArchived = (getTime() - creation).weeks > 8
+  let isArchived = (getTime() - creation).inWeeks > 8
   let canEdit = c.rank == Admin or c.userid == postRow[0]
   if isArchived:
     raise newForumError("This post is archived and can no longer be edited")