diff --git a/lib/erd/generator_runner.rb b/lib/erd/generator_runner.rb
index 7b9315d..a8b5348 100644
--- a/lib/erd/generator_runner.rb
+++ b/lib/erd/generator_runner.rb
@@ -9,7 +9,7 @@ class << self
       # @return generated migration filename
       def execute_generate_model(name, options = nil)
         result = execute_generator 'model', name, options
-        result.flatten.grep(%r(/db/migrate/.*\.rb))
+        result.flatten.grep(%r(\Adb/migrate/.*\.rb))
       end
 
       # runs `rails g migration [name]`