diff --git a/src/turtle/_impl/_lsystem_comm.scad b/src/turtle/_impl/_lsystem_comm.scad
index f4a16f42..c2a166ca 100644
--- a/src/turtle/_impl/_lsystem_comm.scad
+++ b/src/turtle/_impl/_lsystem_comm.scad
@@ -10,17 +10,15 @@ function _join(str_lt) =
     [for(i = 0, s = str_lt[0]; i < leng; i = i + 1, s = str(s, str_lt[i])) s][leng - 1];
 
 function c_or_v(c, v, rules, rules_pr, leng, i = 0) =
-    i == leng ? c : (
-        let(idx = search([v[i]], rules, num_returns_per_match=0, index_col_num = 1)[0][0])
-        rand(0, 1) <= rules_pr[idx] ? v[i] : c_or_v(c, v, rules, rules_pr, leng, i + 1)
-    );
+    i == leng ? c : 
+    let(idx = search([v[i]], rules, num_returns_per_match=0, index_col_num = 1)[0][0])
+    rand(0, 1) <= rules_pr[idx] ? v[i] : c_or_v(c, v, rules, rules_pr, leng, i + 1);
 
 function _derive1_p(base, rules, rules_pr) = 
     _join([
         for(c = base) 
         let(v = [for(r = rules) if(r[0] == c) r[1]])
-        v == [] ? c : 
-        c_or_v(c, v, rules, rules_pr, len(v))
+        v == [] ? c : c_or_v(c, v, rules, rules_pr, len(v))
     ]);
 
 function _derive_p(base, rules, rules_pr, n, i = 0) =