diff --git a/libctru/source/system/ctru_exit.c b/libctru/source/system/ctru_exit.c
index a65cc4e..41c5acd 100644
--- a/libctru/source/system/ctru_exit.c
+++ b/libctru/source/system/ctru_exit.c
@@ -11,6 +11,8 @@ void __appExit();
 
 void __libc_fini_array(void);
 
+Result __sync_fini(void) __attribute__((weak));
+
 void __attribute__((weak)) __attribute__((noreturn)) __libctru_exit(int rc)
 {
 	u32 tmp=0;
@@ -24,6 +26,9 @@ void __attribute__((weak)) __attribute__((noreturn)) __libctru_exit(int rc)
 	// Close some handles
 	__destroy_handle_list();
 
+	if (__sync_fini)
+		__sync_fini();
+
 	// Jump to the loader if it provided a callback
 	if (__system_retAddr)
 		__system_retAddr();
diff --git a/libctru/source/system/initSystem.c b/libctru/source/system/initSystem.c
index b0cde6c..98c5837 100644
--- a/libctru/source/system/initSystem.c
+++ b/libctru/source/system/initSystem.c
@@ -18,6 +18,8 @@ void __appInit();
 void __ctru_exit(int rc);
 int __libctru_gtod(struct _reent *ptr, struct timeval *tp, struct timezone *tz);
 
+Result __sync_init(void) __attribute__((weak));
+
 void __attribute__((weak)) __libctru_init(void (*retAddr)(void))
 {
 
@@ -27,6 +29,9 @@ void __attribute__((weak)) __libctru_init(void (*retAddr)(void))
 
 	__system_retAddr = __service_ptr ? retAddr : NULL;
 
+	if (__sync_init)
+		__sync_init();
+
 	__system_allocateHeaps();
 
 	// Build argc/argv if present