diff --git a/photograb/main.py b/photograb/main.py
index 4a69130..49eabe9 100644
--- a/photograb/main.py
+++ b/photograb/main.py
@@ -4,7 +4,9 @@ from .store import Content, Store
 from .config import load_config, BadConfiguration
 from .utils import print_error, print_success
 
-def find_deleted():
+
+def find_imported():
+    """ Finds files imported into the gallery """
     return Content()
 
 
@@ -39,11 +41,14 @@ def main(opts):
 
     if opts.sync:  # Synchronize deleted files
         print_success("Syncing...")
-        deleted = find_deleted()
+        imported = find_imported()
         for ext, backup in backups.items():
-            backup.trash_content(deleted.filter_by_ext(ext))
-        if opts.update_card:
-            camera.remove_content(deleted)
+            with_ext = imported.filter_by_ext(ext)
+            deleted = backup.difference(with_ext)
+            backup.trash_content(deleted)
+            if opts.update_card:
+                deleted = camera.difference(with_ext)
+                camera.remove_content(deleted)
 
     if opts.wipe_card:  # Wipe the camera memory
         pass