diff --git a/BBGE/Base.cpp b/BBGE/Base.cpp
index b996122..6fd26d3 100644
--- a/BBGE/Base.cpp
+++ b/BBGE/Base.cpp
@@ -773,6 +773,10 @@ std::vector<std::string> getFileList(std::string path, std::string type, int par
 	return list;
 }
 
+#if defined(BBGE_BUILD_MACOSX)
+void cocoaMessageBox(const std::string &title, const std::string &msg);
+#endif
+
 void messageBox(const std::string& title, const std::string &msg)
 {
 #ifdef BBGE_BUILD_WINDOWS
diff --git a/BBGE/Core.cpp b/BBGE/Core.cpp
index f514807..1774824 100644
--- a/BBGE/Core.cpp
+++ b/BBGE/Core.cpp
@@ -822,10 +822,6 @@ void Core::errorLog(const std::string &s)
 	debugLog(s);
 }
 
-#if defined(BBGE_BUILD_MACOSX)
-void cocoaMessageBox(const std::string &title, const std::string &msg);
-#endif
-
 void Core::messageBox(const std::string &title, const std::string &msg)
 {
 	::messageBox(title, msg);