diff --git a/cmake/configs/nuttx_tap-v1_default.cmake b/cmake/configs/nuttx_tap-v1_default.cmake
index 4de03735d4..cb2d6543b2 100644
--- a/cmake/configs/nuttx_tap-v1_default.cmake
+++ b/cmake/configs/nuttx_tap-v1_default.cmake
@@ -2,6 +2,8 @@ include(nuttx/px4_impl_nuttx)
 
 set(CMAKE_TOOLCHAIN_FILE ${PX4_SOURCE_DIR}/cmake/toolchains/Toolchain-arm-none-eabi.cmake)
 
+set(target_definitions MEMORY_CONSTRAINED_SYSTEM)
+
 set(config_module_list
 	#
 	# Board support modules