diff --git a/student-distrib/pit.h b/student-distrib/pit.h
index 7029ff9412d8ba7265fa1b5cd742681b20be79c0..dd78a2e5aa98d2e65222ade9b841cdf855499894 100644
--- a/student-distrib/pit.h
+++ b/student-distrib/pit.h
@@ -5,3 +5,7 @@
 #define FREQUENCY 			    1193182
 #define CHANNEL_0 				0x40
 #define CMD_REG					0x43
+
+
+pcb_t* get_pcb(uint32_t pid);
+void scheduler(void);
diff --git a/student-distrib/scheduler.h b/student-distrib/scheduler.h
index a6c5f3f4dca1edd1024ca233d6b052476bc710db..823f8d58e3438e2d8fa4d1d40a2122479746f800 100644
--- a/student-distrib/scheduler.h
+++ b/student-distrib/scheduler.h
@@ -4,3 +4,6 @@
 
 pcb_t* get_pcb(uint32_t pid);
 int32_t remap_proc(int32_t pid);
+
+
+extern void scheduler(void);