1 files changed, 2 insertions, 2 deletions
diff --git a/chart2/source/tools/RegressionEquation.cxx b/chart2/source/tools/RegressionEquation.cxx
index d4140691053c..927b06d4b0e9 100644
--- a/chart2/source/tools/RegressionEquation.cxx
+++ b/chart2/source/tools/RegressionEquation.cxx
@@ -285,13 +285,13 @@ void RegressionEquation::fireModifyEvent()
 // ____ XTitle ____
 uno::Sequence< uno::Reference< chart2::XFormattedString > > SAL_CALL RegressionEquation::getText()
 {
-    MutexGuard aGuard( GetMutex() );
+    MutexGuard aGuard( m_aMutex );
     return m_aStrings;
 }
 
 void SAL_CALL RegressionEquation::setText( const uno::Sequence< uno::Reference< chart2::XFormattedString > >& Strings )
 {
-    MutexGuard aGuard( GetMutex() );
+    MutexGuard aGuard( m_aMutex );
     ModifyListenerHelper::removeListenerFromAllElements(
         ContainerHelper::SequenceToVector( m_aStrings ), m_xModifyEventForwarder );
     m_aStrings = Strings;