diff --git a/lib/sbdb/environment.rb b/lib/sbdb/environment.rb
index fdb8191..c7da46b 100644
--- a/lib/sbdb/environment.rb
+++ b/lib/sbdb/environment.rb
@@ -60,7 +60,7 @@ module SBDB
 		# Close the Environment.
 		# First you should close all databases!
 		def close
-			@dbs.each{|db|db.close}
+			@dbs.each{|k, db|db.close}
 			@env.close
 		end