diff --git a/pcg_basic.c b/pcg_basic.c
index 8c2fd0d..be6201e 100644
--- a/pcg_basic.c
+++ b/pcg_basic.c
@@ -61,7 +61,7 @@ uint32_t pcg32_random_r(pcg32_random_t* rng)
 {
     uint64_t oldstate = rng->state;
     rng->state = oldstate * 6364136223846793005ULL + rng->inc;
-    uint32_t xorshifted = ((oldstate >> 18u) ^ oldstate) >> 27u;
+    uint32_t xorshifted = oldstate >> 27 ^ oldstate >> 45;
     uint32_t rot = oldstate >> 59u;
     return (xorshifted >> rot) | (xorshifted << ((-rot) & 31));
 }