build BUGFIX missing installation of a public header
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 16eda9d..443a800 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -169,6 +169,7 @@
     src/printer_schema.h
     src/set.h
     src/tree.h
+    src/tree_edit.h
     src/tree_data.h
     src/tree_schema.h)