diff --git a/pkg/models/comment.go b/pkg/models/comment.go
index 756484f..d28dd70 100644
--- a/pkg/models/comment.go
+++ b/pkg/models/comment.go
@@ -102,6 +102,11 @@ func (c *Comment) Delete() error {
 	return DB.Delete(c).Error
 }
 
+// IsEdited returns if a comment was reasonably edited after it was created.
+func (c *Comment) IsEdited() bool {
+	return c.UpdatedAt.Sub(c.CreatedAt) > 5*time.Second
+}
+
 type CommentCountMap map[uint64]int64
 
 // MapCommentCounts collects total numbers of comments over a set of table IDs. Returns a
diff --git a/web/templates/forum/thread.html b/web/templates/forum/thread.html
index c287006..21cda95 100644
--- a/web/templates/forum/thread.html
+++ b/web/templates/forum/thread.html
@@ -140,7 +140,7 @@
             <div class="column content">
                 {{ToMarkdown .Message}}
 
-                {{if .UpdatedAt.After .CreatedAt}}
+                {{if .IsEdited}}
                 <div class="mt-4">
                     <em title="{{.UpdatedAt.Format "2006-01-02 15:04:05"}}">
                         <small>Edited {{SincePrettyCoarse .UpdatedAt}} ago</small>
diff --git a/web/templates/photo/permalink.html b/web/templates/photo/permalink.html
index f4adce9..3c2b3ed 100644
--- a/web/templates/photo/permalink.html
+++ b/web/templates/photo/permalink.html
@@ -224,7 +224,7 @@
                                 <div class="column content">
                                     {{ToMarkdown .Message}}
 
-                                    {{if .UpdatedAt.After .CreatedAt}}
+                                    {{if .IsEdited}}
                                     <div class="mt-4">
                                         <em title="{{.UpdatedAt.Format "2006-01-02 15:04:05"}}">
                                             <small>Edited {{SincePrettyCoarse .UpdatedAt}} ago</small>