diff --git a/Utilities/SQueue.h b/Utilities/SQueue.h
index 1fee6f6727..a7021365e1 100644
--- a/Utilities/SQueue.h
+++ b/Utilities/SQueue.h
@@ -15,7 +15,7 @@ public:
 	{
 	}
 
-	bool Push(T& data)
+	bool Push(const T& data)
 	{
 		while (true)
 		{
@@ -96,4 +96,4 @@ public:
 		SMutexLocker lock(m_mutex);
 		m_count = 0;
 	}
-};
\ No newline at end of file
+};