diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt
index e5f48976..31471484 100644
--- a/app/CMakeLists.txt
+++ b/app/CMakeLists.txt
@@ -11,6 +11,9 @@ project(zmk)
 zephyr_linker_sources(SECTIONS include/linker/zmk-behaviors.ld)
 zephyr_linker_sources(RODATA include/linker/zmk-events.ld)
 
+zephyr_syscall_header(${APPLICATION_SOURCE_DIR}/include/drivers/behavior.h)
+zephyr_syscall_header(${APPLICATION_SOURCE_DIR}/include/drivers/ext_power.h)
+
 # Add your source file to the "app" target. This must come after
 # find_package(Zephyr) which defines the target.
 target_include_directories(app PRIVATE include)
diff --git a/app/prj.conf b/app/prj.conf
index e69de29b..cd2bc13f 100644
--- a/app/prj.conf
+++ b/app/prj.conf
@@ -0,0 +1 @@
+CONFIG_APPLICATION_DEFINED_SYSCALL=y
\ No newline at end of file