diff --git a/lib/rp2350-riscv/platform_def.txt b/lib/rp2350-riscv/platform_def.txt
index 3c03c871..8520dbb8 100644
--- a/lib/rp2350-riscv/platform_def.txt
+++ b/lib/rp2350-riscv/platform_def.txt
@@ -1,4 +1,5 @@
 -DPICO_CYW43_ARCH_THREADSAFE_BACKGROUND=1
+-DTARGET_RP2350
 -DCYW43_LWIP=1
 -DCYW43_PIO_CLOCK_DIV_DYNAMIC=1
 -DCFG_TUSB_MCU=OPT_MCU_RP2040
diff --git a/lib/rp2350/platform_def.txt b/lib/rp2350/platform_def.txt
index f4135acf..fb25add2 100644
--- a/lib/rp2350/platform_def.txt
+++ b/lib/rp2350/platform_def.txt
@@ -1,4 +1,5 @@
 -DPICO_CYW43_ARCH_THREADSAFE_BACKGROUND=1
+-DTARGET_RP2350
 -DCYW43_LWIP=1
 -DCYW43_PIO_CLOCK_DIV_DYNAMIC=1
 -DCFG_TUSB_MCU=OPT_MCU_RP2040