diff --git a/idf_component.yml b/idf_component.yml
index 45fd99c..b75c540 100644
--- a/idf_component.yml
+++ b/idf_component.yml
@@ -5,7 +5,7 @@ files:
   exclude:
     - "**/*"
   include:
-    - src/dsmr_parser/*.h
+    - src/dsmr_parser/**/*.h
     - LICENSE
     - README.md
     - CMakeLists.txt
diff --git a/library.json b/library.json
index f0f2eb6..25689b4 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "dsmr_parser",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "description": "A parser for Dutch Smart Meter Requirements (DSMR) telegrams. Fork of arduino-dsmr. Doesn't depend on the Arduino framework and has many bug fixes and code quality improvements. Supports encrypted DSMR packets.",
   "keywords": "dsmr",
   "repository": {
@@ -10,7 +10,7 @@
   "license": "MIT",
   "export": {
     "include": [
-      "src/dsmr_parser/*.h"
+      "src/dsmr_parser/**/*.h"
     ]
   }
 }