diff --git a/cpu/exception.c b/cpu/exception.c
index 3e94c5f..014408f 100644
--- a/cpu/exception.c
+++ b/cpu/exception.c
@@ -173,7 +173,7 @@ static void isr31(struct interrupt_descriptor_32 *frame) {
 }
 
 
-void exception_handlers_init() {
+void exception_handlers_init(void) {
     idt_register_handler(0, (size_t)isr0);
     idt_register_handler(1, (size_t)isr1);
     idt_register_handler(2, (size_t)isr2);
diff --git a/cpu/exception.h b/cpu/exception.h
index 12a35ff..57f9ce2 100644
--- a/cpu/exception.h
+++ b/cpu/exception.h
@@ -1,6 +1,6 @@
 #ifndef _EXCEPTION_H
 #define _EXCEPTION_H
 
-void exception_handlers_init();
+void exception_handlers_init(void);
 
 #endif
\ No newline at end of file
diff --git a/cpu/idt.c b/cpu/idt.c
index 6377cc9..24b0fa8 100644
--- a/cpu/idt.c
+++ b/cpu/idt.c
@@ -6,7 +6,7 @@
 struct interrupt_descriptor_32 idt[256];
 static size_t idt_ptr[2];
 
-void idt_init() {
+void idt_init(void) {
     size_t idt_address = (size_t)idt;
     idt_ptr[0] = (sizeof (struct interrupt_descriptor_32) * 256) + ((idt_address & 0xffff) << 16);
     idt_ptr[1] = idt_address >> 16;
diff --git a/cpu/idt.h b/cpu/idt.h
index b120d71..149f34e 100644
--- a/cpu/idt.h
+++ b/cpu/idt.h
@@ -16,7 +16,7 @@ struct interrupt_descriptor_32 {
     uint16_t offset_2;        // offset bits 16..31
 } __attribute__((__packed__)); 
 
-void idt_init();
+void idt_init(void);
 void idt_register_handler(uint8_t interrupt, size_t address);
 
 #endif
diff --git a/ps2/keyboard.c b/ps2/keyboard.c
index f40dea9..5e82e08 100644
--- a/ps2/keyboard.c
+++ b/ps2/keyboard.c
@@ -58,7 +58,7 @@ end:
     pic_send_eoi(1);
 }
 
-void keyboard_init() {
+void keyboard_init(void) {
     pic_irq_clear_mask(1);
     idt_register_handler(33, (size_t)irq);
     inb(0x60);
diff --git a/ps2/keyboard.h b/ps2/keyboard.h
index 9717375..4179978 100644
--- a/ps2/keyboard.h
+++ b/ps2/keyboard.h
@@ -1,6 +1,6 @@
 #ifndef _KEYBOARD_H
 #define _KEYBOARD_H
 
-void keyboard_init();
+void keyboard_init(void);
 
 #endif
diff --git a/std/kstd.c b/std/kstd.c
index c4f962c..3dbebe3 100644
--- a/std/kstd.c
+++ b/std/kstd.c
@@ -118,7 +118,8 @@ void kputs(const char* data) {
     kprintf("%s\n", data);
 }
 
-void kabort() {
+__attribute__((__noreturn__))
+void kabort(void) {
     kprintf("kabort(): halting kernel...\n");
     asm volatile("cli");
     asm volatile("hlt");
diff --git a/std/kstd.h b/std/kstd.h
index a80202d..ae036ce 100644
--- a/std/kstd.h
+++ b/std/kstd.h
@@ -6,6 +6,8 @@
 int kputchar(int ic);
 int kprintf(const char* restrict format, ...);
 void kputs(const char* data);
-void kabort();
+
+__attribute__((__noreturn__))
+void kabort(void);
 
 #endif
\ No newline at end of file