diff --git a/src/tools/cppunit/ThreadedTestCase.cpp b/src/tools/cppunit/ThreadedTestCase.cpp
index 2d753cc959..788765fd47 100644
--- a/src/tools/cppunit/ThreadedTestCase.cpp
+++ b/src/tools/cppunit/ThreadedTestCase.cpp
@@ -7,6 +7,7 @@
 _EXPORT
 BThreadedTestCase::BThreadedTestCase(string name, string progressSeparator)
 	: BTestCase(name)
+	, fInUse(false)
 	, fProgressSeparator(progressSeparator)
 	, fUpdateLock(new BLocker())
 {