diff --git a/src/lib.rs b/src/lib.rs
index 49e7a0e..0b84dcb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -400,7 +400,15 @@ impl SmartString {
     }
 
     fn lpush_visible(&mut self, ch: char) {
-        todo!()
+        let last_fragment = self.fragments.iter_mut()
+            .filter(|(visible, _)| *visible)
+            .map(|(_, string)| string)
+            .next();
+        if let Some(fragment) = last_fragment {
+            fragment.push(ch);
+        } else {
+            self.fragments.insert(0, (true, ch.to_string()));
+        }
     }
 }