diff --git a/pkgs/applications/editors/emacs/elisp-packages/manual-packages.nix b/pkgs/applications/editors/emacs/elisp-packages/manual-packages.nix
index 3f5dd795ccb9..c9eda3a548a0 100644
--- a/pkgs/applications/editors/emacs/elisp-packages/manual-packages.nix
+++ b/pkgs/applications/editors/emacs/elisp-packages/manual-packages.nix
@@ -196,6 +196,35 @@
 
   power-mode = callPackage ./power-mode { };
 
+  prisma-mode = let
+    rev = "5283ca7403bcb21ca0cac8ecb063600752dfd9d4";
+  in melpaBuild {
+    pname = "prisma-mode";
+    version = "20211207.0";
+
+    commit = rev;
+
+    packageRequires = [ js2-mode ];
+
+    src = pkgs.fetchFromGitHub {
+      owner = "pimeys";
+      repo = "emacs-prisma-mode";
+      inherit rev;
+      sha256 = "sha256-DJJfjbu27Gi7Nzsa1cdi8nIQowKH8ZxgQBwfXLB0Q/I=";
+    };
+
+    recipe = pkgs.writeText "recipe" ''
+      (prisma-mode
+      :repo "pimeys/emacs-prisma-mode"
+      :fetcher github)
+    '';
+
+    meta = {
+      description = "Major mode for Prisma Schema Language";
+      license = gpl2Only;
+    };
+  };
+
   railgun = callPackage ./railgun { };
 
   structured-haskell-mode = self.shm;