diff --git a/eeschema/symbol_tree_synchronizing_adapter.cpp b/eeschema/symbol_tree_synchronizing_adapter.cpp
index 99d19af2ac..acc59921ab 100644
--- a/eeschema/symbol_tree_synchronizing_adapter.cpp
+++ b/eeschema/symbol_tree_synchronizing_adapter.cpp
@@ -174,7 +174,7 @@ void SYMBOL_TREE_SYNCHRONIZING_ADAPTER::updateLibrary( LIB_TREE_NODE_LIBRARY& aL
             auto aliasIt = std::find_if( aliases.begin(), aliases.end(),
                     [&] ( const LIB_SYMBOL* a )
                     {
-                        return a->GetName() == (*nodeIt)->m_LibId.GetLibItemName();
+                        return a->GetName() == (*nodeIt)->m_LibId.GetLibItemName().wx_str();
                     } );
 
             if( aliasIt != aliases.end() )
diff --git a/pcbnew/fp_tree_synchronizing_adapter.cpp b/pcbnew/fp_tree_synchronizing_adapter.cpp
index f91f34396c..aff00b5f4d 100644
--- a/pcbnew/fp_tree_synchronizing_adapter.cpp
+++ b/pcbnew/fp_tree_synchronizing_adapter.cpp
@@ -278,7 +278,7 @@ bool FP_TREE_SYNCHRONIZING_ADAPTER::GetAttr( wxDataViewItem const& aItem, unsign
     switch( node->m_Type )
     {
     case LIB_TREE_NODE::LIBRARY:
-        if( node->m_Name == m_frame->GetLoadedFPID().GetLibNickname() )
+        if( node->m_Name == m_frame->GetLoadedFPID().GetLibNickname().wx_str() )
         {
             // mark the current library if it's collapsed
             if( !m_widget->IsExpanded( ToItem( node ) ) )
diff --git a/pcbnew/pcb_edit_frame.cpp b/pcbnew/pcb_edit_frame.cpp
index b94ae7064e..cf72f730b6 100644
--- a/pcbnew/pcb_edit_frame.cpp
+++ b/pcbnew/pcb_edit_frame.cpp
@@ -2349,7 +2349,7 @@ void PCB_EDIT_FRAME::ExchangeFootprint( FOOTPRINT* aExisting, FOOTPRINT* aNew,
     processTextItem( aExisting->Value(), aNew->Value(),
                      // reset value text only when it is a proxy for the footprint ID
                      // (cf replacing value "MountingHole-2.5mm" with "MountingHole-4.0mm")
-                     aExisting->GetValue() == aExisting->GetFPID().GetLibItemName(),
+                     aExisting->GetValue() == aExisting->GetFPID().GetLibItemName().wx_str(),
                      resetTextLayers, resetTextEffects, aUpdated );
 
     // Copy fields in accordance with the reset* flags