diff --git a/goal_src/jak1/pc/util/knuth-rand.gc b/goal_src/jak1/pc/util/knuth-rand.gc
index 8c5bb7f24..bfd780e1f 100644
--- a/goal_src/jak1/pc/util/knuth-rand.gc
+++ b/goal_src/jak1/pc/util/knuth-rand.gc
@@ -60,9 +60,9 @@
          (val 0))
 
     ;; if ((bound & -bound) == bound)  // i.e., bound is a power of 2
-    (if (= (logand bound (* -1 bound)) bound)
+    (if (= (logand bound (- bound)) bound)
       ;; return (int)((bound * (long)next(31)) >> 31);
-      (return (sar (* bound (knuth-rand-next 31)) 31))
+      (return (+ min (sar (imul64 bound (knuth-rand-next 31)) 31)))
       )
 
     ;;  do {