diff --git a/kernel/mm/mm.cc b/kernel/mm/mm.cc
index 4ce5846..3827379 100644
--- a/kernel/mm/mm.cc
+++ b/kernel/mm/mm.cc
@@ -248,6 +248,12 @@ int mm_early_map(u32_t virtual_address, u32_t physical_address,
         {
             return 0;
         }
+        pagedirectory_entry_t * page_table_virt = (pagedirectory_entry_t *)
+            (page_table_phys + KERNEL_OFFSET);
+        for (int i = 0; i < NUM_PAGETABLE_ENTRIES; i++)
+        {
+            page_table_virt[i] = 0;
+        }
         (*early_page_directory_ptr)[directory_index] = page_table_phys
                                   | 0x1 << 2  /* PTs can be user mode */
                                   | 0x1 << 1  /* writable */
@@ -291,6 +297,7 @@ int mm_map(u32_t virtual_address, u32_t physical_address,
                         | 0x1 << 2  /* PTs can be user mode */
                         | 0x1 << 1  /* writable */
                         | 0x1;      /* present */
+        /* FIXME pagedirectory_entry_t * page_table = */
     }
 
     pagedirectory_entry_t * page_table_entry = (pagedirectory_entry_t *)