diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index ce5f581be1bc..44ecb98cf609 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -425,7 +425,7 @@ let
     Rhpc = with pkgs; [ zlib bzip2.dev icu xz.dev mpi pcre.dev ];
     Rhtslib = with pkgs; [ zlib.dev automake autoconf bzip2.dev xz.dev curl.dev ];
     rjags = [ pkgs.jags ];
-    rJava = with pkgs; [ zlib bzip2.dev icu xz.dev pcre.dev jdk libzip ];
+    rJava = with pkgs; [ zlib bzip2.dev icu xz.dev pcre.dev jdk libzip libdeflate ];
     Rlibeemd = [ pkgs.gsl ];
     rmatio = [ pkgs.zlib.dev pkgs.pkg-config ];
     Rmpfr = with pkgs; [ gmp mpfr.dev ];