diff --git a/pkgs/applications/editors/emacs-modes/dash/default.nix b/pkgs/applications/editors/emacs-modes/dash/default.nix
new file mode 100644
index 00000000000..aacc33c9b51
--- /dev/null
+++ b/pkgs/applications/editors/emacs-modes/dash/default.nix
@@ -0,0 +1,23 @@
+{stdenv, fetchurl, emacs}:
+
+let version = "1.5.0";
+
+in stdenv.mkDerivation {
+  name = "emacs-dash-${version}";
+
+  src = fetchurl {
+    url = "https://github.com/magnars/dash.el/archive/${version}.tar.gz";
+    sha256 = "0c6jknzy306vn22vqlabxkwxfnllrd33spymi74fkirbxaxvp8kp";
+  };
+
+  buildInputs = [ emacs ];
+
+  buildPhase = ''
+    emacs -L . --batch -f batch-byte-compile *.el
+  '';
+
+  installPhase = ''
+    install -d $out/share/emacs/site-lisp
+    install *.el *.elc $out/share/emacs/site-lisp
+  '';
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 31e9f9f64d3..3710dddccd2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8641,9 +8641,9 @@ let
 
     darcsum = callPackage ../applications/editors/emacs-modes/darcsum { };
 
-    # ecb = callPackage ../applications/editors/emacs-modes/ecb { };
+    dash = callPackage ../applications/editors/emacs-modes/dash { };
 
-    jabber = callPackage ../applications/editors/emacs-modes/jabber { };
+    # ecb = callPackage ../applications/editors/emacs-modes/ecb { };
 
     emacsClangCompleteAsync = callPackage ../applications/editors/emacs-modes/emacs-clang-complete-async { };
 
@@ -8665,6 +8665,8 @@ let
 
     idris = callPackage ../applications/editors/emacs-modes/idris { };
 
+    jabber = callPackage ../applications/editors/emacs-modes/jabber { };
+
     jade = callPackage ../applications/editors/emacs-modes/jade { };
 
     jdee = callPackage ../applications/editors/emacs-modes/jdee {