diff --git a/pkgs/servers/sql/postgresql/generic.nix b/pkgs/servers/sql/postgresql/generic.nix
index 863d8c3b4e2f..375492e31785 100644
--- a/pkgs/servers/sql/postgresql/generic.nix
+++ b/pkgs/servers/sql/postgresql/generic.nix
@@ -46,7 +46,8 @@ let
 
     stdenv' = if jitSupport then llvmPackages.stdenv else stdenv;
   in stdenv'.mkDerivation (finalAttrs: {
-    inherit pname version;
+    inherit version;
+    pname = pname + lib.optionalString jitSupport "-jit";
 
     src = fetchurl {
       url = "mirror://postgresql/source/v${version}/${pname}-${version}.tar.bz2";