diff --git a/postrender.go b/postrender.go
index b9ef07c..12c4a81 100644
--- a/postrender.go
+++ b/postrender.go
@@ -64,6 +64,10 @@ func (p *Post) augmentContent(c *Collection) {
 		// Don't augment posts that are pinned
 		return
 	}
+	if strings.Index(p.Content, "<!--nosig-->") > -1 {
+		// Don't augment posts with the special "nosig" shortcode
+		return
+	}
 	// Add post signatures
 	if c.Signature != "" {
 		p.Content += "\n\n" + c.Signature