diff --git a/iabgpp-encoder/src/main/java/com/iab/gpp/encoder/section/AbstractLazilyEncodableSection.java b/iabgpp-encoder/src/main/java/com/iab/gpp/encoder/section/AbstractLazilyEncodableSection.java
index 5e97e14..1f31a59 100644
--- a/iabgpp-encoder/src/main/java/com/iab/gpp/encoder/section/AbstractLazilyEncodableSection.java
+++ b/iabgpp-encoder/src/main/java/com/iab/gpp/encoder/section/AbstractLazilyEncodableSection.java
@@ -65,6 +65,7 @@ public void setFieldValue(String fieldName, Object value) {
     for(EncodableSegment segment : segments) {
       if(segment.hasField(fieldName)) {
         segment.setFieldValue(fieldName, value);
+        this.dirty = true;
         return;
       }
     }