diff --git a/pkgs/os-specific/darwin/apple-source-releases/default.nix b/pkgs/os-specific/darwin/apple-source-releases/default.nix
index 849c9ef03b82..5d4cd22363d6 100644
--- a/pkgs/os-specific/darwin/apple-source-releases/default.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/default.nix
@@ -45,6 +45,7 @@ let
       shell_cmds    = "187";
       system_cmds   = "550.6";
       diskdev_cmds   = "593";
+      top           = "108";
     };
     "osx-10.11.5" = {
       Libc          = "1082.50.1"; # 10.11.6 still unreleased :/
@@ -249,6 +250,7 @@ let
     file_cmds       = applePackage "file_cmds"         "osx-10.11.6"     "1zfxbmasps529pnfdjvc13p7ws2cfx8pidkplypkswyff0nff4wp" {};
     shell_cmds      = applePackage "shell_cmds"        "osx-10.11.6"     "0084k271v66h4jqp7q7rmjvv7w4mvhx3aq860qs8jbd30canm86n" {};
     system_cmds     = applePackage "system_cmds"       "osx-10.11.6"     "1h46j2c5v02pkv5d9fyv6cpgyg0lczvwicrx6r9s210cl03l77jl" {};
+    top             = applePackage "top"               "osx-10.11.6"     "0i9120rfwapgwdvjbfg0ya143i29s1m8zbddsxh39pdc59xnsg5l" {};
 
     security_systemkeychain = applePackage "security_systemkeychain" "osx-10.10.5" "0xviskdgxsail15npi0billyiysvljlmg38mmhnr7qi4ymnnjr90" {};
 
diff --git a/pkgs/os-specific/darwin/apple-source-releases/top/default.nix b/pkgs/os-specific/darwin/apple-source-releases/top/default.nix
new file mode 100644
index 000000000000..f262d0c74732
--- /dev/null
+++ b/pkgs/os-specific/darwin/apple-source-releases/top/default.nix
@@ -0,0 +1,11 @@
+{xcbuild, appleDerivation, apple_sdk, ncurses, libutil-new}:
+
+appleDerivation {
+  buildInputs = [ xcbuild apple_sdk.frameworks.IOKit ncurses libutil-new ];
+  NIX_LDFLAGS = "-lutil";
+  installPhase = ''
+    install -D Products/Release/libtop.a $out/lib/libtop.a
+    install -D Products/Release/libtop.h $out/include/libtop.h
+    install -D Products/Release/top $out/bin/top
+  '';
+}