diff --git a/pkg/mindflow/mindflow.go b/pkg/mindflow/mindflow.go
index 1aed47a..ebd98ed 100644
--- a/pkg/mindflow/mindflow.go
+++ b/pkg/mindflow/mindflow.go
@@ -32,7 +32,9 @@ func NewPost(category Category, title, body string) (*Post, error) {
 }
 
 func (p *Post) PostID() string {
-	return fmt.Sprint(strings.ToLower(p.Category.Name), "-", p.Date.Format("20060102-1504"))
+	name := strings.ToLower(p.Category.Name)
+	name = strings.ReplaceAll(name, " ", ".")
+	return fmt.Sprint(name, "-", p.Date.Format("20060102-1504"))
 }
 
 type Mindflow interface {