diff --git a/tools/pas2c/PascalBasics.hs b/tools/pas2c/PascalBasics.hs
index f4eba72f87..eaf4d596db 100644
--- a/tools/pas2c/PascalBasics.hs
+++ b/tools/pas2c/PascalBasics.hs
@@ -2,7 +2,7 @@
 module PascalBasics where
 
 import Text.Parsec.Combinator
-import Text.Parsec.Char
+import Text.Parsec.Char hiding (string')
 import Text.Parsec.Prim
 import Text.Parsec.Token
 import Text.Parsec.Language
diff --git a/tools/pas2c/PascalParser.hs b/tools/pas2c/PascalParser.hs
index 2edd7a2479..0f525c0e60 100644
--- a/tools/pas2c/PascalParser.hs
+++ b/tools/pas2c/PascalParser.hs
@@ -4,7 +4,7 @@ module PascalParser (
     )
     where
 
-import Text.Parsec
+import Text.Parsec hiding (string')
 import Text.Parsec.Token
 import Text.Parsec.Expr
 import Control.Monad
@@ -720,4 +720,3 @@ redoUnit = do
     string' "var"
     v <- varsDecl True
     return $ Redo (t ++ v)
-
diff --git a/tools/pas2c/PascalPreprocessor.hs b/tools/pas2c/PascalPreprocessor.hs
index 4db8eaa8ae..93a176209c 100644
--- a/tools/pas2c/PascalPreprocessor.hs
+++ b/tools/pas2c/PascalPreprocessor.hs
@@ -1,7 +1,7 @@
 {-# LANGUAGE ScopedTypeVariables #-}
 module PascalPreprocessor where
 
-import Text.Parsec
+import Text.Parsec hiding (string')
 import Control.Monad.IO.Class
 import Control.Monad
 import System.IO