diff --git a/src/plugins/debugger/script/scriptengine.cpp b/src/plugins/debugger/script/scriptengine.cpp
index fb8731e3bb730da23fad2051c02ffd5debbfca00..3954997f3acb23d5f1b0b74596ed87791f838052 100644
--- a/src/plugins/debugger/script/scriptengine.cpp
+++ b/src/plugins/debugger/script/scriptengine.cpp
@@ -545,12 +545,12 @@ bool ScriptEngine::setToolTipExpression(const QPoint &mousePos,
     }
 
     if (!hasLetterOrNumber(exp)) {
-        QToolTip::showText(m_toolTipPos, tr("'%1' contains no identifier").arg(exp));
+        QToolTip::showText(m_toolTipPos, tr("'%1' contains no identifier.").arg(exp));
         return false;
     }
 
     if (exp.startsWith(QLatin1Char('"')) && exp.endsWith(QLatin1Char('"'))) {
-        QToolTip::showText(m_toolTipPos, tr("String literal %1").arg(exp));
+        QToolTip::showText(m_toolTipPos, tr("String literal %1.").arg(exp));
         return false;
     }
 
@@ -566,7 +566,7 @@ bool ScriptEngine::setToolTipExpression(const QPoint &mousePos,
     if (hasSideEffects(exp)) {
         QToolTip::showText(m_toolTipPos,
             tr("Cowardly refusing to evaluate expression '%1' "
-               "with potential side effects").arg(exp));
+               "with potential side effects.").arg(exp));
         return false;
     }