diff --git a/src/ldtk/Json.hx b/src/ldtk/Json.hx
index 33da2de..a84469b 100644
--- a/src/ldtk/Json.hx
+++ b/src/ldtk/Json.hx
@@ -630,6 +630,10 @@ typedef EntityInstanceJson = {
 	@changed("0.4.0")
 	var px: Array<Int>;
 
+	/** Two-bit integer. First bit determines whether or not this EntityInstance is flipped horizontally, the second bit vertically. **/
+	@added("1.2.6")
+	var f: Int;
+
 	/** An array of all custom fields and their values. **/
 	var fieldInstances: Array<FieldInstanceJson>;
 }
@@ -981,6 +985,16 @@ typedef EntityDefJson = {
 	@internal
 	var resizableY: Bool;
 
+	/** If TRUE, the entity instances will be flippable horizontally **/
+	@added("1.2.6")
+	@internal
+	var flippableX: Bool;
+
+	/** If TRUE, the entity instances will be flippable vertically **/
+	@added("1.2.6")
+	@internal
+	var flippableY: Bool;
+
 	/** Only applies to entities resizable on both X/Y. If TRUE, the entity instance width/height will keep the same aspect ratio as the definition. **/
 	@added("0.8.0")
 	@internal