diff --git a/src/memory/Memory.cc b/src/memory/Memory.cc
index f1aedbc..64ebfa1 100644
--- a/src/memory/Memory.cc
+++ b/src/memory/Memory.cc
@@ -59,7 +59,7 @@ MemoryManager::initializeGDT()
 
 namespace memory {
 
-const usize pageSize = 4096;
+const usize pageSize = 0x1000;
 const usize pageMask = pageSize - 1;
 
 } /* namespace memory */
diff --git a/src/memory/Memory.hh b/src/memory/Memory.hh
index 44e81fd..4bf1e44 100644
--- a/src/memory/Memory.hh
+++ b/src/memory/Memory.hh
@@ -32,19 +32,22 @@ private:
 
 namespace memory {
 
+/** Size of a single page in bytes. */
 extern const usize pageSize;
 extern const usize pageMask;
 
+
 /** Align to the nearest page boundary below `addr`. */
-inline u32
-pageAlignDown(u32 addr)
+inline uptr
+pageAlignDown(uptr addr)
 {
     return addr & ~pageMask;
 }
 
+
 /** Align to the nearest page boundary above `addr`. */
-inline u32
-pageAlignUp(u32 addr)
+inline uptr
+pageAlignUp(uptr addr)
 {
     if (pageAlignDown(addr) == addr) {
         return addr;