diff --git a/arch/arm/cpu/mmu.c b/arch/arm/cpu/mmu.c
index 66ee987..5bf31c0 100644
--- a/arch/arm/cpu/mmu.c
+++ b/arch/arm/cpu/mmu.c
@@ -99,7 +99,7 @@
 {
 	void *mem;
 
-	mem = malloc(size);
+	mem = memalign(4096, size);
 	if (mem)
 		return mem + dma_coherent_offset;