diff --git a/artiq/gateware/targets/kc705_phaser.py b/artiq/gateware/targets/kc705_phaser.py
index fe141837f..64e511d3f 100755
--- a/artiq/gateware/targets/kc705_phaser.py
+++ b/artiq/gateware/targets/kc705_phaser.py
@@ -157,7 +157,6 @@ class Phaser(MiniSoC, AMPSoC):
         "rtio":          0x20000000,
         "rtio_dma":      0x30000000,
         "mailbox":       0x70000000,
-        "ad9154":        0x50000000,
     }
     mem_map.update(MiniSoC.mem_map)