diff --git a/src/add-ons/kernel/drivers/audio/echo/generic/OsSupportBeOS.h b/src/add-ons/kernel/drivers/audio/echo/generic/OsSupportBeOS.h
index 45ea3f543c..f395189c3a 100644
--- a/src/add-ons/kernel/drivers/audio/echo/generic/OsSupportBeOS.h
+++ b/src/add-ons/kernel/drivers/audio/echo/generic/OsSupportBeOS.h
@@ -333,7 +333,7 @@ private:
 	//
 	// Define data here.
 	//
-#ifdef _DEBUG
+#ifdef ECHO_DEBUG
 	DWORD					m_dwPageBlockCount;
 #endif