diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index 1e511534ec50..583b2bf4c3b5 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -622,6 +622,7 @@ let
     ncdfFlow = [ pkgs.zlib.dev ];
     proj4 = [ pkgs.proj.dev ];
     rtmpt = [ pkgs.gsl ];
+    rmarkdown = [ pkgs.pandoc ];
     mixcat = [ pkgs.gsl ];
     libstableR = [ pkgs.gsl ];
     landsepi = [ pkgs.gsl ];