diff --git a/boards/px4/fmu-v5/nuttx-config/stackcheck/defconfig b/boards/px4/fmu-v5/nuttx-config/stackcheck/defconfig
index 0aa357e7502..fc119c5305f 100644
--- a/boards/px4/fmu-v5/nuttx-config/stackcheck/defconfig
+++ b/boards/px4/fmu-v5/nuttx-config/stackcheck/defconfig
@@ -735,7 +735,7 @@ CONFIG_SCHED_LPWORKSTACKSIZE=1800
 # Stack and heap information
 #
 CONFIG_IDLETHREAD_STACKSIZE=750
-CONFIG_USERMAIN_STACKSIZE=2500
+CONFIG_USERMAIN_STACKSIZE=2624
 CONFIG_PTHREAD_STACK_MIN=512
 CONFIG_PTHREAD_STACK_DEFAULT=2048
 # CONFIG_LIB_SYSCALL is not set