diff --git a/indra/llcommon/lltracerecording.h b/indra/llcommon/lltracerecording.h
index 355dbabb1c11705c9248aa07e89fad2e2b48e75b..b64607522842318bcff14efa5334faa624212fa1 100644
--- a/indra/llcommon/lltracerecording.h
+++ b/indra/llcommon/lltracerecording.h
@@ -112,6 +112,9 @@ class LLStopWatchControlsMixin
 
 namespace LLTrace
 {
+	template<typename T>
+	class TraceType;
+
 	class Recording 
 	:	public LLStopWatchControlsMixin<Recording>
 	{