--- a/lib/stdfns.c
+++ b/lib/stdfns.c
@@ -378,6 +378,12 @@ mutils_memmove(void *dest, __const void 
 	bigptr1 = (mutils_word32 *) dest;
 	bigptr2 = (mutils_word32 *) src;
 
+	/* copy byte-by-byte for small and/or unaligned copies */
+	if ((n < 16) || ((mutils_word32)dest & 0x3) || ((mutils_word32)src & 0x3))
+	{
+		return mutils_memcpy8(dest, src, n);
+	}
+
 	words = n >> 2;
 	remainder = n - (words << 2);