diff --git a/src/app/script/script_input_chain.cpp b/src/app/script/script_input_chain.cpp
index 0bc7e419a..4a5836a7c 100644
--- a/src/app/script/script_input_chain.cpp
+++ b/src/app/script/script_input_chain.cpp
@@ -8,12 +8,13 @@
 #include "config.h"
 #endif
 
+#include "app/script/script_input_chain.h"
+
 #include "app/app.h"
 #include "app/cmd/deselect_mask.h"
 #include "app/cmd/remap_colors.h"
 #include "app/commands/commands.h"
 #include "app/context_access.h"
-#include "app/script/script_input_chain.h"
 #include "app/site.h"
 #include "app/tx.h"
 #include "app/util/clipboard.h"
diff --git a/src/app/script/script_input_chain.h b/src/app/script/script_input_chain.h
index 2b9ee7290..fa63d2af9 100644
--- a/src/app/script/script_input_chain.h
+++ b/src/app/script/script_input_chain.h
@@ -4,12 +4,14 @@
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
 
-#ifdef ENABLE_SCRIPTING
-
 #ifndef APP_SCRIPT_SCRIPT_INPUT_CHAIN_H_INCLUDED
 #define APP_SCRIPT_SCRIPT_INPUT_CHAIN_H_INCLUDED
 #pragma once
 
+#ifndef ENABLE_SCRIPTING
+  #error ENABLE_SCRIPTING must be defined
+#endif
+
 #include "app/ui/input_chain_element.h"
 
 namespace app {
@@ -34,5 +36,5 @@ namespace app {
   };
 
 } // namespace app
-#endif
+
 #endif