diff --git a/scrapy/spiderloader.py b/scrapy/spiderloader.py
index e6c3e64a5..6093c07c6 100644
--- a/scrapy/spiderloader.py
+++ b/scrapy/spiderloader.py
@@ -27,7 +27,7 @@ class SpiderLoader(object):
                 import warnings
                 warnings.warn("There are several spiders with the same name (" + spcls.name +
                               "), this can cause unexpected behavior", UserWarning)
-        self._spiders[spcls.name] = spcls
+            self._spiders[spcls.name] = spcls
     
 
     def _load_all_spiders(self):