diff --git a/cmd/mem.c b/cmd/mem.c
index 66c2d36..c696b92 100644
--- a/cmd/mem.c
+++ b/cmd/mem.c
@@ -361,7 +361,7 @@
 	}
 #endif
 
-	memcpy(dst, src, count * size);
+	memmove(dst, src, count * size);
 
 	unmap_sysmem(src);
 	unmap_sysmem(dst);