diff --git a/server.rb b/server.rb
index b3502fb..4eacfcc 100755
--- a/server.rb
+++ b/server.rb
@@ -264,6 +264,7 @@ def add_part(part)
     insert.execute(part["name"])
     part["id"] = statement.execute(part["name"]).to_a[0]["id"]
   end
+  old_part = get_part_by_id(part["id"])
   # update family
   family = nil
   field = "family"
@@ -392,6 +393,12 @@ def add_part(part)
       insert.execute(part["id"], ref["id"], row["quantity"])
     end
   end
+  # update attachments
+  dir_old = PUBLIC + "/" + ATTACHMENTS + "/" + old_part["name"].gsub("/", "_")
+  dir_new = PUBLIC + "/" + ATTACHMENTS + "/" + part["name"].gsub("/", "_")
+  unless dir_old == dir_new then
+    File.rename(dir_old, dir_new)
+  end
 end
 
 post '/part' do