diff --git a/distribution/changelog.txt b/distribution/changelog.txt
index 92455e8dcb..3e8a44ad49 100644
--- a/distribution/changelog.txt
+++ b/distribution/changelog.txt
@@ -1,6 +1,7 @@
 0.4.7 (in development)
 ------------------------------------------------------------------------
 - Fix: [#20737] Spent money in player window underflows when getting refunds.
+- Fix: [#20778] [Plugin] Incorrect target api when executing custom actions.
 
 0.4.6 (2023-09-03)
 ------------------------------------------------------------------------
diff --git a/src/openrct2/scripting/ScriptEngine.cpp b/src/openrct2/scripting/ScriptEngine.cpp
index c064ca486d..c2626a4ae7 100644
--- a/src/openrct2/scripting/ScriptEngine.cpp
+++ b/src/openrct2/scripting/ScriptEngine.cpp
@@ -1069,7 +1069,7 @@ GameActions::Result ScriptEngine::QueryOrExecuteCustomGameAction(const CustomAct
         }
 
         std::vector<DukValue> pluginCallArgs;
-        if (GetTargetAPIVersion() <= API_VERSION_68_CUSTOM_ACTION_ARGS)
+        if (customActionInfo.Owner->GetTargetAPIVersion() <= API_VERSION_68_CUSTOM_ACTION_ARGS)
         {
             pluginCallArgs = { *dukArgs };
         }