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diff --git a/plugins/extraction/ExtrHaskellString.v b/plugins/extraction/ExtrHaskellString.v
deleted file mode 100644
index 8c61f4e96b..0000000000
--- a/plugins/extraction/ExtrHaskellString.v
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-(**
- * Special handling of ascii and strings for extraction to Haskell.
- *)
-
-Require Coq.extraction.Extraction.
-
-Require Import Ascii.
-Require Import String.
-Require Import Coq.Strings.Byte.
-
-(**
- * At the moment, Coq's extraction has no way to add extra import
- * statements to the extracted Haskell code.  You will have to
- * manually add:
- *
- *   import qualified Data.Bits
- *   import qualified Data.Char
- *)
-
-Extract Inductive ascii => "Prelude.Char"
-  [ "(\b0 b1 b2 b3 b4 b5 b6 b7 -> Data.Char.chr (
-      (if b0 then Data.Bits.shiftL 1 0 else 0) Prelude.+
-      (if b1 then Data.Bits.shiftL 1 1 else 0) Prelude.+
-      (if b2 then Data.Bits.shiftL 1 2 else 0) Prelude.+
-      (if b3 then Data.Bits.shiftL 1 3 else 0) Prelude.+
-      (if b4 then Data.Bits.shiftL 1 4 else 0) Prelude.+
-      (if b5 then Data.Bits.shiftL 1 5 else 0) Prelude.+
-      (if b6 then Data.Bits.shiftL 1 6 else 0) Prelude.+
-      (if b7 then Data.Bits.shiftL 1 7 else 0)))" ]
-  "(\f a -> f (Data.Bits.testBit (Data.Char.ord a) 0)
-              (Data.Bits.testBit (Data.Char.ord a) 1)
-              (Data.Bits.testBit (Data.Char.ord a) 2)
-              (Data.Bits.testBit (Data.Char.ord a) 3)
-              (Data.Bits.testBit (Data.Char.ord a) 4)
-              (Data.Bits.testBit (Data.Char.ord a) 5)
-              (Data.Bits.testBit (Data.Char.ord a) 6)
-              (Data.Bits.testBit (Data.Char.ord a) 7))".
-Extract Inlined Constant Ascii.ascii_dec => "(Prelude.==)".
-Extract Inlined Constant Ascii.eqb => "(Prelude.==)".
-
-Extract Inductive string => "Prelude.String" [ "([])" "(:)" ].
-Extract Inlined Constant String.string_dec => "(Prelude.==)".
-Extract Inlined Constant String.eqb => "(Prelude.==)".
-
-(* python -c 'print(" ".join(r""" "%s" """.strip() % (r"'"'\''"'" if chr(i) == "'"'"'" else repr(""" "" """.strip()) if chr(i) == """ " """.strip() else repr(chr(i))) for i in range(256)))' # " to satisfy Coq's comment parser *)
-Extract Inductive byte => "Prelude.Char"
-["'\x00'" "'\x01'" "'\x02'" "'\x03'" "'\x04'" "'\x05'" "'\x06'" "'\x07'" "'\x08'" "'\t'" "'\n'" "'\x0b'" "'\x0c'" "'\r'" "'\x0e'" "'\x0f'" "'\x10'" "'\x11'" "'\x12'" "'\x13'" "'\x14'" "'\x15'" "'\x16'" "'\x17'" "'\x18'" "'\x19'" "'\x1a'" "'\x1b'" "'\x1c'" "'\x1d'" "'\x1e'" "'\x1f'" "' '" "'!'" "'""'" "'#'" "'$'" "'%'" "'&'" "'\''" "'('" "')'" "'*'" "'+'" "','" "'-'" "'.'" "'/'" "'0'" "'1'" "'2'" "'3'" "'4'" "'5'" "'6'" "'7'" "'8'" "'9'" "':'" "';'" "'<'" "'='" "'>'" "'?'" "'@'" "'A'" "'B'" "'C'" "'D'" "'E'" "'F'" "'G'" "'H'" "'I'" "'J'" "'K'" "'L'" "'M'" "'N'" "'O'" "'P'" "'Q'" "'R'" "'S'" "'T'" "'U'" "'V'" "'W'" "'X'" "'Y'" "'Z'" "'['" "'\\'" "']'" "'^'" "'_'" "'`'" "'a'" "'b'" "'c'" "'d'" "'e'" "'f'" "'g'" "'h'" "'i'" "'j'" "'k'" "'l'" "'m'" "'n'" "'o'" "'p'" "'q'" "'r'" "'s'" "'t'" "'u'" "'v'" "'w'" "'x'" "'y'" "'z'" "'{'" "'|'" "'}'" "'~'" "'\x7f'" "'\x80'" "'\x81'" "'\x82'" "'\x83'" "'\x84'" "'\x85'" "'\x86'" "'\x87'" "'\x88'" "'\x89'" "'\x8a'" "'\x8b'" "'\x8c'" "'\x8d'" "'\x8e'" "'\x8f'" "'\x90'" "'\x91'" "'\x92'" "'\x93'" "'\x94'" "'\x95'" "'\x96'" "'\x97'" "'\x98'" "'\x99'" "'\x9a'" "'\x9b'" "'\x9c'" "'\x9d'" "'\x9e'" "'\x9f'" "'\xa0'" "'\xa1'" "'\xa2'" "'\xa3'" "'\xa4'" "'\xa5'" "'\xa6'" "'\xa7'" "'\xa8'" "'\xa9'" "'\xaa'" "'\xab'" "'\xac'" "'\xad'" "'\xae'" "'\xaf'" "'\xb0'" "'\xb1'" "'\xb2'" "'\xb3'" "'\xb4'" "'\xb5'" "'\xb6'" "'\xb7'" "'\xb8'" "'\xb9'" "'\xba'" "'\xbb'" "'\xbc'" "'\xbd'" "'\xbe'" "'\xbf'" "'\xc0'" "'\xc1'" "'\xc2'" "'\xc3'" "'\xc4'" "'\xc5'" "'\xc6'" "'\xc7'" "'\xc8'" "'\xc9'" "'\xca'" "'\xcb'" "'\xcc'" "'\xcd'" "'\xce'" "'\xcf'" "'\xd0'" "'\xd1'" "'\xd2'" "'\xd3'" "'\xd4'" "'\xd5'" "'\xd6'" "'\xd7'" "'\xd8'" "'\xd9'" "'\xda'" "'\xdb'" "'\xdc'" "'\xdd'" "'\xde'" "'\xdf'" "'\xe0'" "'\xe1'" "'\xe2'" "'\xe3'" "'\xe4'" "'\xe5'" "'\xe6'" "'\xe7'" "'\xe8'" "'\xe9'" "'\xea'" "'\xeb'" "'\xec'" "'\xed'" "'\xee'" "'\xef'" "'\xf0'" "'\xf1'" "'\xf2'" "'\xf3'" "'\xf4'" "'\xf5'" "'\xf6'" "'\xf7'" "'\xf8'" "'\xf9'" "'\xfa'" "'\xfb'" "'\xfc'" "'\xfd'" "'\xfe'" "'\xff'"].
-
-Extract Inlined Constant Byte.eqb => "(Prelude.==)".
-Extract Inlined Constant Byte.byte_eq_dec => "(Prelude.==)".
-Extract Inlined Constant Ascii.ascii_of_byte => "(\x -> x)".
-Extract Inlined Constant Ascii.byte_of_ascii => "(\x -> x)".
-
-(*
-Require Import ExtrHaskellBasic.
-Definition test := "ceci est un test"%string.
-Definition test2 := List.map (option_map Byte.to_nat) (List.map Byte.of_nat (List.seq 0 256)).
-Definition test3 := List.map ascii_of_nat (List.seq 0 256).
-
-Extraction Language Haskell.
-Recursive Extraction test Ascii.zero Ascii.one test2 test3 byte_rect.
-*)