diff --git a/lang/cem/libcc.ansi/stdlib/rand.c b/lang/cem/libcc.ansi/stdlib/rand.c
index dbae2b10..82afb2e8 100644
--- a/lang/cem/libcc.ansi/stdlib/rand.c
+++ b/lang/cem/libcc.ansi/stdlib/rand.c
@@ -11,7 +11,7 @@ static unsigned long int next = 1;
 int rand(void)
 {
 	next = next * 1103515245 + 12345;
-	return (unsigned int)(next/(2 * (RAND_MAX +1)) % (RAND_MAX+1));
+	return (unsigned int)(next/(2 * (RAND_MAX +1L)) % (RAND_MAX+1L));
 }
 
 void srand(unsigned int seed)