diff --git a/pkgs/development/libraries/codec2/default.nix b/pkgs/development/libraries/codec2/default.nix
index a860470af31..9f15f9e16d4 100644
--- a/pkgs/development/libraries/codec2/default.nix
+++ b/pkgs/development/libraries/codec2/default.nix
@@ -2,17 +2,22 @@
 
 stdenv.mkDerivation rec {
   pname = "codec2";
-  version = "1.0.0";
+  version = "1.0.1";
 
   src = fetchFromGitHub {
     owner = "drowe67";
     repo = "codec2";
     rev = "v${version}";
-    sha256 = "sha256-R4H6gwmc8nPgRfhNms7n7jMCHhkzX7i/zfGT4CYSsY8=";
+    sha256 = "05xjsb67dzwncl2rnhg6fqih8krf38b7vmvzlsb7y9g6d1b085wg";
   };
 
   nativeBuildInputs = [ cmake ];
 
+  # Swap keyword order to satisfy SWIG parser
+  postFixup = ''
+    sed -r -i 's/(\<_Complex)(\s+)(float|double)/\3\2\1/' $out/include/$pname/freedv_api.h
+  '';
+
   meta = with lib; {
     description = "Speech codec designed for communications quality speech at low data rates";
     homepage = "http://www.rowetel.com/blog/?page_id=452";