diff --git a/eeschema/sch_label.cpp b/eeschema/sch_label.cpp
index e5b4fe24bc..87251cca45 100644
--- a/eeschema/sch_label.cpp
+++ b/eeschema/sch_label.cpp
@@ -921,6 +921,16 @@ SCH_DIRECTIVE_LABEL::SCH_DIRECTIVE_LABEL( const VECTOR2I& pos ) :
 }
 
 
+void SCH_DIRECTIVE_LABEL::SwapData( SCH_ITEM* aItem )
+{
+    SCH_LABEL_BASE::SwapData( aItem );
+    SCH_DIRECTIVE_LABEL* label = static_cast<SCH_DIRECTIVE_LABEL*>( aItem );
+
+    std::swap( m_pinLength, label->m_pinLength );
+    std::swap( m_symbolSize, label->m_symbolSize );
+}
+
+
 SCH_DIRECTIVE_LABEL::SCH_DIRECTIVE_LABEL( const SCH_DIRECTIVE_LABEL& aClassLabel ) :
         SCH_LABEL_BASE( aClassLabel )
 {
diff --git a/eeschema/sch_label.h b/eeschema/sch_label.h
index 8a67489556..de45defc50 100644
--- a/eeschema/sch_label.h
+++ b/eeschema/sch_label.h
@@ -230,6 +230,8 @@ public:
         return new SCH_DIRECTIVE_LABEL( *this );
     }
 
+    void SwapData( SCH_ITEM* aItem ) override;
+
     int GetPinLength() const { return m_pinLength; }
     void SetPinLength( int aLength ) { m_pinLength = aLength; }