diff --git a/README.md b/README.md
index 17c63fa..069d0ae 100644
--- a/README.md
+++ b/README.md
@@ -153,7 +153,7 @@ user-level virtual memory mappings for APIC physical memory-mapped I/O
 registers and page table entries of interest. Recent Linux distributions
 typically enable the `CONFIG_STRICT_DEVMEM` option which prevents such use,
 however. Our `/dev/sgx-step` driver therefore includes an
-[approach](https://www.libcrack.so/2012/09/02/bypassing-devmem_is_allowed-with-kprobes/)
+[approach](https://www.libcrack.so/index.php/2012/09/02/bypassing-devmem_is_allowed-with-kprobes/)
 to bypass `devmem_is_allowed` checks, without having to recompile the kernel.
 
 ### 2. Patch and install SGX SDK
diff --git a/kernel/sgxstep.c b/kernel/sgxstep.c
index 54a86b4..6114006 100644
--- a/kernel/sgxstep.c
+++ b/kernel/sgxstep.c
@@ -232,7 +232,7 @@ static struct miscdevice step_dev = {
     .mode   = S_IRUGO | S_IWUGO
 };
 
-/* Code from: <https://www.libcrack.so/2012/09/02/bypassing-devmem_is_allowed-with-kprobes/> */
+/* Code from: <https://www.libcrack.so/index.php/2012/09/02/bypassing-devmem_is_allowed-with-kprobes/> */
 static int devmem_is_allowed_handler (struct kretprobe_instance *rp, struct pt_regs *regs)
 {
     if (regs->ax == 0) {