diff --git a/engines/lab/intro.cpp b/engines/lab/intro.cpp
index e841eda2109..86007c0ec38 100644
--- a/engines/lab/intro.cpp
+++ b/engines/lab/intro.cpp
@@ -42,6 +42,7 @@ namespace Lab {
 
 Intro::Intro(LabEngine *vm) : _vm(vm) {
 	_quitIntro = false;
+	_introDoBlack = false;
 }
 
 /**