diff --git a/lib/runners/firecracker.nix b/lib/runners/firecracker.nix
index a73f97fb..5d71664b 100644
--- a/lib/runners/firecracker.nix
+++ b/lib/runners/firecracker.nix
@@ -86,7 +86,7 @@ in {
     then throw "hotpluggedMem not implemented for Firecracker"
     else if credentialFiles != {}
     then throw "credentialFiles are not implemented for Firecracker"
-    else lib.escapeShellArgs [
+    else lib.escapeShellArgs ([
       "${pkgs.firecracker}/bin/firecracker"
       "--config-file" configFile
       "--api-sock" (
@@ -94,7 +94,7 @@ in {
         then socket
         else throw "Firecracker must be configured with an API socket (option microvm.socket)!"
       )
-    ];
+    ] ++ lib.optional (lib.versionAtLeast pkgs.firecracker.version "1.13.0") "--enable-pci");
 
   preStart = ''
     ${preStart}