diff --git a/artiq/frontend/artiq_flash.py b/artiq/frontend/artiq_flash.py
index 0ed2a5fde..fb6610297 100755
--- a/artiq/frontend/artiq_flash.py
+++ b/artiq/frontend/artiq_flash.py
@@ -281,7 +281,7 @@ def main():
             "bootloader":   ("spi1", 0x000000),
             "storage":      ("spi1", 0x040000),
             "firmware":     ("spi1", 0x050000),
-            "rtm_gateware": ("spi1", 0x150000),
+            "rtm_gateware": ("spi1", 0x200000),
         },
     }[args.target]
 
diff --git a/artiq/gateware/targets/sayma_amc.py b/artiq/gateware/targets/sayma_amc.py
index 6e2415d57..d0262a00b 100755
--- a/artiq/gateware/targets/sayma_amc.py
+++ b/artiq/gateware/targets/sayma_amc.py
@@ -170,7 +170,7 @@ class Standalone(MiniSoC, AMPSoC):
         ])
         self.csr_devices.append("slave_fpga_cfg")
         # self.config["HAS_SLAVE_FPGA"] = None
-        self.config["SLAVE_FPGA_GATEWARE"] = 0x150000
+        self.config["SLAVE_FPGA_GATEWARE"] = 0x200000
 
         # AMC/RTM serwb
         serwb_pads = platform.request("amc_rtm_serwb")