diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index 2014192ce94..293cdbaa7d2 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -330,7 +330,7 @@ let
     RPostgreSQL = [ pkgs.postgresql ];
     RProtoBuf = [ pkgs.protobuf ];
     rPython = [ pkgs.python ];
-    RSclient = [ pkgs.openssl ];
+    RSclient = [ pkgs.openssl.dev ];
     Rserve = [ pkgs.openssl ];
     Rssa = [ pkgs.fftw ];
     rtfbs = [ pkgs.zlib pkgs.pcre pkgs.bzip2 pkgs.gzip pkgs.readline ];