diff --git a/src/util/rand.scad b/src/util/rand.scad
index 3d2c26ba..e8430c57 100644
--- a/src/util/rand.scad
+++ b/src/util/rand.scad
@@ -1 +1,2 @@
-function rand() = rands(0, 1, 1)[0];
\ No newline at end of file
+function rand(min_value = 0, max_value = 1, seed_value) = 
+    is_undef(seed_value) ? rands(min_value, max_value , 1)[0] : rands(min_value, max_value , 1, seed_value)[0];
\ No newline at end of file