diff --git a/System Abstraction/cdb_sustem.h b/System Abstraction/cdb_sustem.h
index c77eff2..2330730 100644
--- a/System Abstraction/cdb_sustem.h	
+++ b/System Abstraction/cdb_sustem.h	
@@ -42,5 +42,5 @@ void sus_heapFree(void * memroy); // what should this function do, if an error o
 
 //Threads
 typedef __attribute__ ((cdecl)) int (*sus_threadProc)(void);
-sus_Bool sus_threadNew(sus_threadProc proc);
+sus_Bool sus_threadNew(sus_threadProc proc, void * arg);
 void sus_threadSleep(unsigned long seconds);
\ No newline at end of file