diff --git a/pkgs/by-name/ff/fftw/package.nix b/pkgs/by-name/ff/fftw/package.nix
index 1e08014e8fce..ae56ad4b321c 100644
--- a/pkgs/by-name/ff/fftw/package.nix
+++ b/pkgs/by-name/ff/fftw/package.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation (finalAttrs: {
       "https://fftw.org/fftw-${finalAttrs.version}.tar.gz"
       "ftp://ftp.fftw.org/pub/fftw/fftw-${finalAttrs.version}.tar.gz"
     ];
-    sha256 = "sha256-VskyVJhSzdz6/as4ILAgDHdCZ1vpIXnlnmIVs0DiZGc=";
+    hash = "sha256-VskyVJhSzdz6/as4ILAgDHdCZ1vpIXnlnmIVs0DiZGc=";
   };
 
   patches = [
@@ -66,9 +66,15 @@ stdenv.mkDerivation (finalAttrs: {
   ++ lib.optional (precision != "double") "--enable-${precision}"
   # https://www.fftw.org/fftw3_doc/SIMD-alignment-and-fftw_005fmalloc.html
   # FFTW will try to detect at runtime whether the CPU supports these extensions
-  ++ lib.optional (
-    stdenv.hostPlatform.isx86_64 && (precision == "single" || precision == "double")
-  ) "--enable-sse2 --enable-avx --enable-avx2 --enable-avx512 --enable-avx128-fma"
+  ++
+    lib.optionals (stdenv.hostPlatform.isx86_64 && (precision == "single" || precision == "double"))
+      [
+        "--enable-sse2"
+        "--enable-avx"
+        "--enable-avx2"
+        "--enable-avx512"
+        "--enable-avx128-fma"
+      ]
   ++ lib.optionals enableMpi [
     "--enable-mpi"
     # link libfftw3_mpi explicitly with -lmpi
@@ -83,15 +89,18 @@ stdenv.mkDerivation (finalAttrs: {
 
   # fftw builds with -mtune=native by default
   postPatch = ''
-    substituteInPlace configure --replace "-mtune=native" "-mtune=generic"
+    substituteInPlace configure --replace-fail "-mtune=native" "-mtune=generic"
   '';
 
+  strictDeps = true;
   enableParallelBuilding = true;
 
   nativeCheckInputs = [ perl ];
 
   passthru.tests.pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;
 
+  __structuredAttrs = true;
+
   meta = {
     description = "Fastest Fourier Transform in the West library";
     homepage = "https://www.fftw.org/";