diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index 3b62be160a6ebca5b11f9f4a0126268386b32580..864baabaee2549cf51821b7fe8c41611e7ae35d0 100644
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -686,7 +686,7 @@ static unsigned int new_pgdir(struct lg_cpu *cpu,
 	 * We pick one entry at random to throw out.  Choosing the Least
 	 * Recently Used might be better, but this is easy.
 	 */
-	next = random32() % ARRAY_SIZE(cpu->lg->pgdirs);
+	next = prandom_u32() % ARRAY_SIZE(cpu->lg->pgdirs);
 	/* If it's never been allocated at all before, try now. */
 	if (!cpu->lg->pgdirs[next].pgdir) {
 		cpu->lg->pgdirs[next].pgdir =