diff --git a/agb/src/rng.rs b/agb/src/rng.rs
index d4ed98766..5d6a5e23d 100644
--- a/agb/src/rng.rs
+++ b/agb/src/rng.rs
@@ -33,7 +33,7 @@ impl RandomNumberGenerator {
     pub const fn next_i32(&mut self) -> i32 {
         let result = (self.state[0].wrapping_add(self.state[3]))
             .rotate_left(7)
-            .wrapping_mul(9);
+            .wrapping_add(self.state[0]);
         let t = self.state[1].wrapping_shr(9);
 
         self.state[2] ^= self.state[0];