diff --git a/pkgs/development/compilers/iasl/default.nix b/pkgs/development/compilers/iasl/default.nix
index 1bcf4106a34d..fccdf7a978d4 100644
--- a/pkgs/development/compilers/iasl/default.nix
+++ b/pkgs/development/compilers/iasl/default.nix
@@ -17,12 +17,6 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ bison flex ];
 
-  patches = fetchpatch {
-    /* https://github.com/acpica/acpica/pull/389 */
-    url = "https://github.com/acpica/acpica/commit/935ca65f7806a3ef9bd02a947e50f3a1f586ac67.patch";
-    sha256 = "0jz4bakifphm425shbd1j99hldgy71m7scl8mwibm441d56l3ydf";
-  };
-
   installPhase =
     ''
       install -d $out/bin