diff --git a/boards/nxp/fmurt1170-v1/nuttx-config/nsh/defconfig b/boards/nxp/fmurt1170-v1/nuttx-config/nsh/defconfig
index 366c3f9cb2..4029443b8d 100644
--- a/boards/nxp/fmurt1170-v1/nuttx-config/nsh/defconfig
+++ b/boards/nxp/fmurt1170-v1/nuttx-config/nsh/defconfig
@@ -18,6 +18,7 @@ CONFIG_ARCH_BOARD_CUSTOM_NAME="px4"
 CONFIG_ARCH_CHIP="imxrt"
 CONFIG_ARCH_CHIP_IMXRT=y
 CONFIG_ARCH_CHIP_MIMXRT1176DVMAA=y
+CONFIG_ARCH_INTERRUPTSTACK=1024
 CONFIG_ARCH_STACKDUMP=y
 CONFIG_ARMV7M_DCACHE=y
 CONFIG_ARMV7M_DCACHE_WRITETHROUGH=y
@@ -74,8 +75,7 @@ CONFIG_HAVE_CXX=y
 CONFIG_HAVE_CXXINITIALIZE=y
 CONFIG_I2C=y
 CONFIG_I2C_RESET=y
-CONFIG_IDLETHREAD_STACKSIZE=750
-CONFIG_IMXRT_BOOTLOADER_HEAP=y
+CONFIG_IDLETHREAD_STACKSIZE=1750
 CONFIG_IMXRT_DTCM_HEAP=y
 CONFIG_IMXRT_EDMA=y
 CONFIG_IMXRT_EDMA_EDBG=y