diff --git a/hw/mips/cputimer.c b/hw/mips/cputimer.c
index 577c9aeab877d5c81cfef29dc69208ce195af56f..160360011884e7cb5168d848ddfe7133037f8351 100644
--- a/hw/mips/cputimer.c
+++ b/hw/mips/cputimer.c
@@ -30,13 +30,16 @@
 /* XXX: do not use a global */
 uint32_t cpu_mips_get_random (CPUMIPSState *env)
 {
-    static uint32_t lfsr = 1;
+    static uint32_t seed = 1;
     static uint32_t prev_idx = 0;
     uint32_t idx;
     /* Don't return same value twice, so get another value */
     do {
-        lfsr = (lfsr >> 1) ^ (-(lfsr & 1u) & 0xd0000001u);
-        idx = lfsr % (env->tlb->nb_tlb - env->CP0_Wired) + env->CP0_Wired;
+        /* Use a simple algorithm of Linear Congruential Generator
+         * from ISO/IEC 9899 standard. */
+        seed = 1103515245 * seed + 12345;
+        idx = (seed >> 16) % (env->tlb->nb_tlb - env->CP0_Wired) +
+              env->CP0_Wired;
     } while (idx == prev_idx);
     prev_idx = idx;
     return idx;