diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index b1f29791a50..ca59771bd36 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -376,7 +376,7 @@ let
     Rsubread = [ pkgs.zlib.dev ];
     XVector = [ pkgs.zlib.dev ];
     Rsamtools = [ pkgs.zlib.dev ];
-    rtracklayer = [ pkgs.zlib ];
+    rtracklayer = [ pkgs.zlib.dev ];
     affyio = [ pkgs.zlib.dev ];
     VariantAnnotation = [ pkgs.zlib ];
     snpStats = [ pkgs.zlib ];