diff --git a/reportdesign/source/core/api/ReportDefinition.cxx b/reportdesign/source/core/api/ReportDefinition.cxx
index 14592bc3bd57..d5abf5202343 100644
--- a/reportdesign/source/core/api/ReportDefinition.cxx
+++ b/reportdesign/source/core/api/ReportDefinition.cxx
@@ -2553,7 +2553,7 @@ void SAL_CALL OStylesHelper::replaceByName( const ::rtl::OUString& aName, const
 {
     ::osl::MutexGuard aGuard(m_aMutex);
     TStyleElements::iterator aFind = m_aElements.find(aName);
-    if ( aFind != m_aElements.end() )
+    if ( aFind == m_aElements.end() )
         throw container::NoSuchElementException();
     if ( !aElement.isExtractableTo(m_aType) )
         throw lang::IllegalArgumentException();