diff --git a/nx/include/switch/kernel/svc.h b/nx/include/switch/kernel/svc.h
index 67a993ab..313814fa 100644
--- a/nx/include/switch/kernel/svc.h
+++ b/nx/include/switch/kernel/svc.h
@@ -296,7 +296,7 @@ typedef enum {
 /**
  * @brief Set the process heap to a given size. It can both extend and shrink the heap.
  * @param[out] out_addr Variable to which write the address of the heap (which is randomized and fixed by the kernel)
- * @param[in] size Size of the heap, must be a multiple of 0x200000 and [2.0.0+] less than 0x18000000.
+ * @param[in] size Size of the heap, must be a multiple of 0x200000 and [2.0.0+] less than 0x100000000.
  * @return Result code.
  * @note Syscall number 0x01.
  */
@@ -1594,4 +1594,4 @@ Result svcMapInsecurePhysicalMemory(void *address, u64 size);
  */
 Result svcUnmapInsecurePhysicalMemory(void *address, u64 size);
 
-///@}
\ No newline at end of file
+///@}