diff --git a/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp b/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp
index 1513025f16..0be8d319c2 100644
--- a/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp
+++ b/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp
@@ -411,6 +411,7 @@ void tst_QLineEdit::cleanup()
 {
     delete m_testWidget;
     m_testWidget = 0;
+    m_platformInputContext.m_commitString.clear();
 }
 
 void tst_QLineEdit::experimental()