diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index 509dba07f98..a81fc649a46 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -274,7 +274,7 @@ let
     JavaGD = [ pkgs.jdk ];
     jpeg = [ pkgs.libjpeg.dev ];
     KFKSDS = [ pkgs.gsl_1 ];
-    kza = [ pkgs.fftw ];
+    kza = [ pkgs.fftw.dev ];
     libamtrack = [ pkgs.gsl_1 ];
     mixcat = [ pkgs.gsl_1 ];
     mvabund = [ pkgs.gsl_1 ];