diff --git a/include/kernel.h b/include/kernel.h
index 9fed2f7..ee61f2a 100644
--- a/include/kernel.h
+++ b/include/kernel.h
@@ -576,11 +576,7 @@ typedef struct __attribute__((aligned(64), packed)) {
 } XSAVE_AREA;
 
 
-static void* IRQ_Handlers[16] = {
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0
-};
-
+static void* IRQ_Handlers[16];
 
 static const char* ExceptionStrings[] = {
 	"Division by Zero",
@@ -642,6 +638,12 @@ size_t      ReadCPUFrequency(size_t* PerformanceDest, uint8_t AvgOrDirect);
 uint32_t    ReadPort(uint16_t Port, int Length);
 uint32_t    WritePort(uint16_t Port, uint32_t Data, int Length);
 
+/* Serial functions */
+void serial_write(const char chr);
+void serial_print(const char* data);
+void serial_printf(const char* format, ...);
+void init_serial();
+
 /*  ==================== Registers ==================== */
 size_t      ReadModelSpecificRegister(size_t MSR);
 size_t      WriteModelSpecificRegister(size_t MSR, size_t Data);
@@ -686,7 +688,7 @@ void ScanCPUFeatures(size_t RAX, size_t RCX);
 
 /*  ==================== Interrupts ==================== */
 
-uint64_t time;
+static uint64_t time;
 
 void IRQ_Common(INTERRUPT_FRAME* Frame, size_t Interupt);
 void ISR_Common(INTERRUPT_FRAME* Frame, size_t Interrupt);