diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/FormField.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/FormField.java
index d2489b5c7..6c09b6086 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/FormField.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/xdata/FormField.java
@@ -378,7 +378,7 @@ public class FormField implements NamedElement {
      */
     protected void resetValues() {
         synchronized (values) {
-            values.removeAll(new ArrayList<>(values));
+            values.clear();
         }
     }