diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index 2082dff7a3a5..1a2b9d533bd4 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -551,6 +551,7 @@ let
     RProtoBuf = [ pkgs.pkg-config ];
     Rpoppler = [ pkgs.pkg-config ];
     XML = [ pkgs.pkg-config ];
+    apsimx = [ pkgs.which ];
     cairoDevice = [ pkgs.pkg-config ];
     chebpol = [ pkgs.pkg-config ];
     fftw = [ pkgs.pkg-config ];