diff --git a/core/logic/smn_timers.cpp b/core/logic/smn_timers.cpp
index c7783f6b..33d3d873 100644
--- a/core/logic/smn_timers.cpp
+++ b/core/logic/smn_timers.cpp
@@ -133,7 +133,10 @@ ResultType TimerNatives::OnTimer(ITimer *pTimer, void *pData)
 {
 	TimerInfo *pInfo = reinterpret_cast<TimerInfo *>(pData);
 	IPluginFunction *pFunc = pInfo->Hook;
-	cell_t res = static_cast<ResultType>(Pl_Continue);
+	if (!pFunc->IsRunnable())
+		return Pl_Continue;
+
+	cell_t res = static_cast<cell_t>(Pl_Continue);
 
 	pFunc->PushCell(pInfo->TimerHandle);
 	pFunc->PushCell(pInfo->UserData);