diff --git a/src/main/java/noppes/npcs/client/CustomNpcResourceListener.java b/src/main/java/noppes/npcs/client/CustomNpcResourceListener.java
index 2f2bc3115..14bb52e71 100644
--- a/src/main/java/noppes/npcs/client/CustomNpcResourceListener.java
+++ b/src/main/java/noppes/npcs/client/CustomNpcResourceListener.java
@@ -9,6 +9,7 @@ import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.StatCollector;
 import noppes.npcs.CustomNpcs;
 import noppes.npcs.LogWriter;
+import noppes.npcs.client.gui.util.script.interpreter.js_parser.JSTypeRegistry;
 
 import javax.imageio.ImageIO;
 import java.awt.Graphics;
@@ -30,6 +31,11 @@ public class CustomNpcResourceListener implements
 
             FolderResourcePack pack = new FolderResourcePack(CustomNpcs.Dir);
             simplemanager.reloadResourcePack(pack);
+            
+            // Reload scripting .d.ts files 
+            JSTypeRegistry registry = JSTypeRegistry.getInstance();
+            registry.clear();
+            registry.initializeFromResources();
 
             try {
                 DefaultTextColor = Integer.parseInt(StatCollector.translateToLocal("customnpcs.defaultTextColor"), 16);
diff --git a/src/main/java/noppes/npcs/client/gui/util/script/interpreter/js_parser/JSTypeRegistry.java b/src/main/java/noppes/npcs/client/gui/util/script/interpreter/js_parser/JSTypeRegistry.java
index 0d2f8e596..b324cf1bd 100644
--- a/src/main/java/noppes/npcs/client/gui/util/script/interpreter/js_parser/JSTypeRegistry.java
+++ b/src/main/java/noppes/npcs/client/gui/util/script/interpreter/js_parser/JSTypeRegistry.java
@@ -842,6 +842,8 @@ public class JSTypeRegistry {
         globalEngineObjects.clear();
         DtsJavaBridge.clearCache();
         initialized = false;
+        initializationAttempted = false;
+        currentSource = null;
     }
 
     private void setCurrentSource(String source) {