diff --git a/Kernel/Prekernel/Arch/aarch64/MMIO.h b/Kernel/Prekernel/Arch/aarch64/MMIO.h
index 46e28e8a55..a729ad6382 100644
--- a/Kernel/Prekernel/Arch/aarch64/MMIO.h
+++ b/Kernel/Prekernel/Arch/aarch64/MMIO.h
@@ -12,7 +12,7 @@ namespace Prekernel {
 
 // Knows about memory-mapped IO addresses on the Broadcom family of SOCs used in Raspberry Pis.
 // RPi3 is the first Raspberry Pi that supports aarch64.
-// https://datasheets.raspberrypi.org/bcm2836/bcm2836-peripherals.pdf (RPi3)
+// https://github.com/raspberrypi/documentation/files/1888662/BCM2837-ARM-Peripherals.-.Revised.-.V2-1.pdf (RPi3)
 // https://datasheets.raspberrypi.org/bcm2711/bcm2711-peripherals.pdf (RPi4 Model B)
 class MMIO {
 public: