diff --git a/packages/field/src/formRegistrarManager.js b/packages/field/src/formRegistrarManager.js
index d5048528e..6d41ea861 100644
--- a/packages/field/src/formRegistrarManager.js
+++ b/packages/field/src/formRegistrarManager.js
@@ -17,7 +17,7 @@ class FormRegistrarManager {
   }
 
   remove(registrar) {
-    this.__elements.splice(this.__elements.indexOf(registrar));
+    this.__elements.splice(this.__elements.indexOf(registrar), 1);
   }
 
   becomesReady() {