diff --git a/libfwupdplugin/fu-chunk.c b/libfwupdplugin/fu-chunk.c
index 776d8012c..74714c761 100644
--- a/libfwupdplugin/fu-chunk.c
+++ b/libfwupdplugin/fu-chunk.c
@@ -31,6 +31,22 @@ struct _FuChunk {
 
 G_DEFINE_TYPE (FuChunk, fu_chunk, G_TYPE_OBJECT)
 
+/**
+ * fu_chunk_set_idx:
+ * @self: a #FuChunk
+ * @idx: index, starting at 0
+ *
+ * Sets the index of the chunk.
+ *
+ * Since: 1.5.6
+ **/
+void
+fu_chunk_set_idx (FuChunk *self, guint32 idx)
+{
+	g_return_if_fail (FU_IS_CHUNK (self));
+	self->idx = idx;
+}
+
 /**
  * fu_chunk_get_idx:
  * @self: a #FuChunk
@@ -48,6 +64,22 @@ fu_chunk_get_idx (FuChunk *self)
 	return self->idx;
 }
 
+/**
+ * fu_chunk_set_page:
+ * @self: a #FuChunk
+ * @page: page number, starting at 0
+ *
+ * Sets the page of the chunk.
+ *
+ * Since: 1.5.6
+ **/
+void
+fu_chunk_set_page (FuChunk *self, guint32 page)
+{
+	g_return_if_fail (FU_IS_CHUNK (self));
+	self->page = page;
+}
+
 /**
  * fu_chunk_get_page:
  * @self: a #FuChunk
@@ -65,6 +97,22 @@ fu_chunk_get_page (FuChunk *self)
 	return self->page;
 }
 
+/**
+ * fu_chunk_set_address:
+ * @self: a #FuChunk
+ * @address: memory address
+ *
+ * Sets the address of the chunk.
+ *
+ * Since: 1.5.6
+ **/
+void
+fu_chunk_set_address (FuChunk *self, guint32 address)
+{
+	g_return_if_fail (FU_IS_CHUNK (self));
+	self->address = address;
+}
+
 /**
  * fu_chunk_get_address:
  * @self: a #FuChunk
diff --git a/libfwupdplugin/fu-chunk.h b/libfwupdplugin/fu-chunk.h
index 921797846..991f115ce 100644
--- a/libfwupdplugin/fu-chunk.h
+++ b/libfwupdplugin/fu-chunk.h
@@ -12,8 +12,14 @@
 
 G_DECLARE_FINAL_TYPE (FuChunk, fu_chunk, FU, CHUNK, GObject)
 
+void		 fu_chunk_set_idx			(FuChunk	*self,
+							 guint32	 idx);
 guint32		 fu_chunk_get_idx			(FuChunk	*self);
+void		 fu_chunk_set_page			(FuChunk	*self,
+							 guint32	 page);
 guint32		 fu_chunk_get_page			(FuChunk	*self);
+void		 fu_chunk_set_address			(FuChunk	*self,
+							 guint32	 address);
 guint32		 fu_chunk_get_address			(FuChunk	*self);
 const guint8	*fu_chunk_get_data			(FuChunk	*self);
 guint8		*fu_chunk_get_data_out			(FuChunk	*self);
diff --git a/libfwupdplugin/fwupdplugin.map b/libfwupdplugin/fwupdplugin.map
index 46a34ee7a..ac9533fb8 100644
--- a/libfwupdplugin/fwupdplugin.map
+++ b/libfwupdplugin/fwupdplugin.map
@@ -732,6 +732,9 @@ LIBFWUPDPLUGIN_1.5.6 {
     fu_chunk_get_idx;
     fu_chunk_get_page;
     fu_chunk_get_type;
+    fu_chunk_set_address;
+    fu_chunk_set_idx;
+    fu_chunk_set_page;
     fu_common_get_memory_size;
     fu_common_strjoin_array;
     fu_common_uri_get_scheme;