diff --git a/bsc/apps/fwi/default.nix b/bsc/apps/fwi/default.nix
new file mode 100644
index 0000000..3909bf3
--- /dev/null
+++ b/bsc/apps/fwi/default.nix
@@ -0,0 +1,33 @@
+{
+  stdenv
+, nanos6
+, mpi
+, tampi
+, mcxx
+, icc
+}:
+
+stdenv.mkDerivation rec {
+  name = "nbody";
+
+  src = builtins.fetchGit {
+    url = "https://gitlab.com/srodrb/BSC-FWI.git";
+    ref = "ompss";
+  };
+
+  postUnpack = "sourceRoot=$sourceRoot/3_ompss";
+
+  buildInputs = [
+    nanos6
+    mpi
+    icc
+    tampi
+    mcxx
+  ];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp fwi.* $out/bin
+    cp ModelGenerator $out/bin
+  '';
+}
diff --git a/default.nix b/default.nix
index 9675c4a..1aaa754 100644
--- a/default.nix
+++ b/default.nix
@@ -157,6 +157,9 @@ let
     hpccg = callPackage ./bsc/apps/hpccg/default.nix {
     };
 
+    fwi = callPackage ./bsc/apps/fwi/default.nix {
+    };
+
     # Patched nix for deep cluster
     inherit (callPackage ./bsc/nix/default.nix {
         storeDir = "/nix/store";