diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 9a202cce00eb..e235369283dc 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -20692,6 +20692,9 @@ with pkgs;
   rtrlib = callPackage ../development/libraries/rtrlib { };
 
   kissfft = callPackage ../development/libraries/kissfft { };
+  kissfftFloat = kissfft.override {
+    datatype = "float";
+  };
 
   lambdabot = callPackage ../development/tools/haskell/lambdabot {
     haskellLib = haskell.lib.compose;