diff --git a/xtoskrnl/mm/amd64/mmgr.cc b/xtoskrnl/mm/amd64/mmgr.cc
index ff6551a..a128cb6 100644
--- a/xtoskrnl/mm/amd64/mmgr.cc
+++ b/xtoskrnl/mm/amd64/mmgr.cc
@@ -29,7 +29,7 @@ MM::Manager::InitializeMemoryLayout(VOID)
     PagedPoolSize = PteCount * PtesPerPage * MM_PAGE_SIZE;
 
     /* Retrieve the PFN database size */
-    MM::Pfn::GetPfnDatabaseSize(&MemoryLayout.PfnDatabaseSize);
+    MM::Pfn::ComputePfnDatabaseSize(&MemoryLayout.PfnDatabaseSize);
 
     /* Define the number of system PTEs */
     NumberOfSystemPtes = MM_DEFAULT_NUMBER_SYSTEM_PTES;
diff --git a/xtoskrnl/mm/i686/mmgr.cc b/xtoskrnl/mm/i686/mmgr.cc
index cc0032a..6a060c9 100644
--- a/xtoskrnl/mm/i686/mmgr.cc
+++ b/xtoskrnl/mm/i686/mmgr.cc
@@ -48,7 +48,7 @@ MM::Manager::InitializeMemoryLayout(VOID)
     PagedPoolSize = PteCount * PtesPerPage * MM_PAGE_SIZE;
 
     /* Retrieve the PFN database size */
-    MM::Pfn::GetPfnDatabaseSize(&MemoryLayout.PfnDatabaseSize);
+    MM::Pfn::ComputePfnDatabaseSize(&MemoryLayout.PfnDatabaseSize);
 
     /* Check if 3-level paging (PAE) is enabled */
     if(MM::Paging::GetXpaStatus())