diff --git a/eeschema/sim/simulator_frame.cpp b/eeschema/sim/simulator_frame.cpp
index b238ee81e1..ff75d8371c 100644
--- a/eeschema/sim/simulator_frame.cpp
+++ b/eeschema/sim/simulator_frame.cpp
@@ -60,6 +60,7 @@
 #include "fmt/format.h"
 #include <dialog_sim_format_value.h>
 #include <eeschema_settings.h>
+#include <advanced_config.h>
 
 #include <memory>
 
@@ -989,6 +990,10 @@ bool SIMULATOR_FRAME::LoadSimulator()
     if( !m_schematicFrame->ReadyToNetlist( _( "Simulator requires a fully annotated schematic." ) ) )
         return false;
 
+    // If we are using the new connectivity, make sure that we do a full-rebuild
+    if( ADVANCED_CFG::GetCfg().m_IncrementalConnectivity )
+        m_schematicFrame->RecalculateConnections( GLOBAL_CLEANUP );
+
     if( !m_simulator->Attach( m_circuitModel, reporter ) )
     {
         DisplayErrorMessage( this, _( "Errors during netlist generation.\n\n" ) + errors );