diff --git a/src/lib/cdev/CMakeLists.txt b/src/lib/cdev/CMakeLists.txt
index 0d7d869fdf..3fe51a7ae2 100644
--- a/src/lib/cdev/CMakeLists.txt
+++ b/src/lib/cdev/CMakeLists.txt
@@ -54,3 +54,7 @@ target_compile_options(cdev PRIVATE ${MAX_CUSTOM_OPT_LEVEL} -D__KERNEL__)
 if(PX4_TESTING)
 	add_subdirectory(test)
 endif()
+
+if(CONFIG_BUILD_FLAT) # Only defined for NuttX
+	target_link_libraries(cdev PRIVATE nuttx_fs)
+endif()