diff --git a/app-proto/src/assembly.rs b/app-proto/src/assembly.rs
index 2ccfc69..739dfc1 100644
--- a/app-proto/src/assembly.rs
+++ b/app-proto/src/assembly.rs
@@ -272,7 +272,7 @@ impl Assembly {
         );
     }
     
-    pub fn insert_regulator(&self, regulator: Regulator) {
+    fn insert_regulator(&self, regulator: Regulator) {
         let subjects = regulator.subjects;
         let key = self.regulators.update(|regs| regs.insert(regulator));
         let subject_regulators = self.elements.with(