diff --git a/changelog.txt b/changelog.txt
index 2bd2158..3f53792 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,4 +1,11 @@
 ---------------------------------------------------------------------------------------------------
+Version: 0.15.4
+Date: 31. 10. 2023
+  Scripting:
+    - Updated /static-libs
+  Bugfixes:
+    - Fixed type issues with EasyAPI during data:extend
+---------------------------------------------------------------------------------------------------
 Version: 0.15.3
 Date: 31. 10. 2023
   Scripting:
diff --git a/experimental/lazyAPI.lua b/experimental/lazyAPI.lua
index f09a3b3..e874825 100644
--- a/experimental/lazyAPI.lua
+++ b/experimental/lazyAPI.lua
@@ -397,6 +397,9 @@ lazyAPI.deleted_data = {} -- Deleted prototypes
 for key in pairs(data_raw) do
 	lazyAPI.deleted_data[key] = {}
 end
+lazyAPI.deleted_data.sound     = lazyAPI.deleted_data.sound or {}
+lazyAPI.deleted_data.animation = lazyAPI.deleted_data.animation or {}
+
 
 ---@type table<table, string>
 lazyAPI.prototypes_mod_source = {}
@@ -1071,11 +1074,10 @@ data.extend = function(self, new_prototypes, ...)
 	for k, prototype in pairs(new_prototypes) do
 		if type(k) == "number" and type(prototype) == "table" and prototype.type then
 			local _type = prototype.type
-			local name = prototype.name
-			if data_raw[_type] == nil then -- Fix for https://mods.factorio.com/mod/Better-TrainHorn
-				data_raw[_type] = {}
-				lazyAPI.deleted_data[_type] = lazyAPI.deleted_data[_type] or {}
-			end
+			local name  = prototype.name
+			data_raw[_type] = data_raw[_type] or {}
+			lazyAPI.deleted_data[_type] = lazyAPI.deleted_data[_type] or {}
+
 			local prev_instance = data_raw[_type][name]
 			-- Perhaps it should verify this case later instead
 			if prev_instance and prev_instance ~= prototype then
diff --git a/info.json b/info.json
index d7f3aac..7128dba 100644
--- a/info.json
+++ b/info.json
@@ -1,6 +1,6 @@
 {
     "name": "zk-lib",
-    "version": "0.15.3",
+    "version": "0.15.4",
     "factorio_version": "1.1",
     "title": "ZwerOxotnik's extendable mod with 8 addons",
     "author": "ZwerOxotnik",
diff --git a/static-libs b/static-libs
index 5a2edfc..daec7b6 160000
--- a/static-libs
+++ b/static-libs
@@ -1 +1 @@
-Subproject commit 5a2edfc13e88616a7159583e9782de307ae17563
+Subproject commit daec7b6669ea02565e312dec2dc6ff328e1456ca