diff --git a/overviewer_core/tileset.py b/overviewer_core/tileset.py
index 825816a..e36a1ad 100644
--- a/overviewer_core/tileset.py
+++ b/overviewer_core/tileset.py
@@ -344,7 +344,7 @@ class TileSet(object):
                 "explicitly not to do a --fullrender (which is the default for "
                 "this situation). I'm overriding your decision and setting "
                 "--fullrender for just this run")
-                self.options['rednerchecks'] = 2
+                self.options['renderchecks'] = 2
             os.mkdir(self.outputdir)
 
         # Set the image format according to the options