diff --git a/core/logic/ExtensionSys.cpp b/core/logic/ExtensionSys.cpp
index 4406a7943a..d53309463a 100644
--- a/core/logic/ExtensionSys.cpp
+++ b/core/logic/ExtensionSys.cpp
@@ -1286,6 +1286,24 @@ bool CExtensionManager::LibraryExists(const char *library)
 	return false;
 }
 
+void CExtensionManager::ForEachLibrary(ke::Function<void(const char *)> callback)
+{
+	for (List<CExtension *>::iterator iter = m_Libs.begin();
+		 iter != m_Libs.end();
+		 iter++)
+	{
+		CExtension *pExt = (*iter);
+		if (!pExt->IsLoaded())
+			continue;
+		for (List<String>::iterator s_iter = pExt->m_Libraries.begin();
+			 s_iter != pExt->m_Libraries.end();
+			 s_iter++)
+		{
+			callback((*s_iter).c_str());
+		}
+	}
+}
+
 IExtension *CExtensionManager::LoadExternal(IExtensionInterface *pInterface,
 											const char *filepath,
 											const char *filename,
diff --git a/core/logic/ExtensionSys.h b/core/logic/ExtensionSys.h
index 6687057cc0..b579987b17 100644
--- a/core/logic/ExtensionSys.h
+++ b/core/logic/ExtensionSys.h
@@ -42,6 +42,7 @@
 #include "NativeOwner.h"
 #include "ShareSys.h"
 #include <bridge/include/IExtensionBridge.h>
+#include <am-function.h>
 
 class CPlayer;
 
@@ -175,6 +176,7 @@ class CExtensionManager :
 	void TryAutoload();
 	void AddLibrary(IExtension *pSource, const char *library);
 	bool LibraryExists(const char *library);
+	void ForEachLibrary(ke::Function<void(const char *)> callback);
 	void CallOnCoreMapStart(edict_t *pEdictList, int edictCount, int clientMax);
 	void CallOnCoreMapEnd();
 	void AddRawDependency(IExtension *ext, IdentityToken_t *other, void *iface);
diff --git a/core/logic/PluginSys.cpp b/core/logic/PluginSys.cpp
index 74d4161dc3..753c4cfd72 100644
--- a/core/logic/PluginSys.cpp
+++ b/core/logic/PluginSys.cpp
@@ -1394,6 +1394,11 @@ bool CPluginManager::RunSecondPass(CPlugin *pPlugin)
 		});
 	}
 
+	// Go through all loaded extension libraries and tell this plugin they're loaded.
+	g_Extensions.ForEachLibrary([pPlugin] (const char *lib) -> void {
+		pPlugin->Call_OnLibraryAdded(lib);
+	});
+
 	return true;
 }