diff --git a/primes.hs b/primes.hs
index e20cd13..165b9df 100644
--- a/primes.hs
+++ b/primes.hs
@@ -1,7 +1,8 @@
 -- Haskell version of a Prime Number Finder
 -- haplo@mindstab.net
 
-import System
+import System.IO
+import System.Environment
 
 check i c m | i > m  = [(show c) ++ " "]
 	    | rem c i > 0 = check (i+2) c m