diff --git a/ethercat.nix b/ethercat.nix
index 0457098..501e4b7 100644
--- a/ethercat.nix
+++ b/ethercat.nix
@@ -4,6 +4,8 @@
   stdenv,
   # interface name (eg. "eth0") or MAC address (eg. "e9:22:a4:62:74:23"). ff:ff:ff:ff:ff:ff means first available NIC
   master_device0 ? "ff:ff:ff:ff:ff:ff",
+  enable-debug-if ? "no",
+  enable-eoe ? "yes",
   kernel
 }:
 
@@ -58,6 +60,9 @@ stdenv.mkDerivation {
     "--enable-tool"
     "--enable-userlib"
     "--enable-tty"
+    "--enable-debug-if=${enable-debug-if}"
+    "--enable-eoe=${enable-eoe}"
+    "--enable-tty"
     "--with-linux-dir=${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
   ];
   #++ lib.optionals (!guiSupport) [ "--disable-gui" "--enable-systemd" ] # TODO add flags for nongeneric NICs like this