diff --git a/etc/generate_registerdefs.py b/etc/generate_registerdefs.py
index 47e5d4c32..d1d5c414e 100644
--- a/etc/generate_registerdefs.py
+++ b/etc/generate_registerdefs.py
@@ -48,7 +48,7 @@ enum class IPCore : uint32_t {
     FHDR_AXI = 0xB0011000,
     AURORA_STATUS = 0xB0014000,
     AURORA_STATUS2 = 0xB0015000,
-    PACKETIZERREG = 4,
+    PACKETIZERREG = 0x00000000, // TODO: fill in correct address
     UNKNOWN = 0x00000000 // dont know yet
 };