diff --git a/pkgs/misc/emulators/wine/base.nix b/pkgs/misc/emulators/wine/base.nix
index 66ea152b274..d556f94b78c 100644
--- a/pkgs/misc/emulators/wine/base.nix
+++ b/pkgs/misc/emulators/wine/base.nix
@@ -1,6 +1,7 @@
 { stdenv, lib, pkgArches,
   name, version, src, monos, geckos, platforms,
-  pkgconfig, fontforge, makeWrapper, flex, bison,
+  # flex 2.6.3 causes: undefined reference to `yywrap'
+  pkgconfig, fontforge, makeWrapper, flex_2_6_1, bison,
   supportFlags,
   buildScript ? null, configureFlags ? ""
 }:
@@ -16,7 +17,7 @@ stdenv.mkDerivation ((lib.optionalAttrs (! isNull buildScript) {
   inherit name src configureFlags;
 
   nativeBuildInputs = [
-    pkgconfig fontforge makeWrapper flex bison
+    pkgconfig fontforge makeWrapper flex_2_6_1 bison
   ];
 
   buildInputs = toBuildInputs pkgArches (with supportFlags; (pkgs: