diff --git a/doc/tutorial/gf-tutorial.t2t b/doc/tutorial/gf-tutorial.t2t
index 63407a38a..2c8d909de 100644
--- a/doc/tutorial/gf-tutorial.t2t
+++ b/doc/tutorial/gf-tutorial.t2t
@@ -4578,7 +4578,7 @@ in any multilingual grammar between any languages in the grammar.
 module Main where
 
 import PGF
-import System (getArgs)
+import System.Environment (getArgs)
 
 main :: IO ()
 main = do