diff --git a/BaS_gcc/sys/mmu.c b/BaS_gcc/sys/mmu.c
index 2645e1b..fa77095 100644
--- a/BaS_gcc/sys/mmu.c
+++ b/BaS_gcc/sys/mmu.c
@@ -448,7 +448,7 @@ bool access_exception(uint32_t pc, uint32_t format_status)
 			}
 			else	/* map this page */
 			{
-				mmu_map_page(fault_address, fault_address);
+				mmu_map_page(fault_address & 0xfff00000, fault_address & 0xfff00000);
 				return true;
 			}
 		}
@@ -464,11 +464,11 @@ void mmu_map_page(uint32_t virt, uint32_t phys)
 	/*
 	 * add page to TLB
 	 */
-	MCF_MMU_MMUTR = (virt & 0xfff00000) | 	/* virtual aligned to 1M */
+	MCF_MMU_MMUTR = virt |					/* virtual address */
 					MCF_MMU_MMUTR_SG |		/* shared global */
 					MCF_MMU_MMUTR_V;		/* valid */
 
-	MCF_MMU_MMUDR = (phys & 0xfff00000) |	/* physical aligned to 1M */
+	MCF_MMU_MMUDR = phys |					/* physical address */
 					MCF_MMU_MMUDR_SZ(0) |	/* 1 MB page size */
 					MCF_MMU_MMUDR_CM(0x1) |	/* cacheable copyback */
 					MCF_MMU_MMUDR_R |		/* read access enable */