diff --git a/pcbnew/router/pns_kicad_iface.cpp b/pcbnew/router/pns_kicad_iface.cpp
index 6074621eec..554c97ab14 100644
--- a/pcbnew/router/pns_kicad_iface.cpp
+++ b/pcbnew/router/pns_kicad_iface.cpp
@@ -599,6 +599,16 @@ bool PNS_KICAD_IFACE_BASE::ImportSizes( PNS::SIZES_SETTINGS& aSizes, PNS::ITEM*
     aSizes.SetMinClearance( bds.m_MinClearance );
     aSizes.SetClearanceSource( _( "board minimum clearance" ) );
 
+    if( m_ruleResolver->QueryConstraint( PNS::CONSTRAINT_TYPE::CT_CLEARANCE, aStartItem, nullptr,
+                                         m_startLayer, &constraint ) )
+    {
+        if( constraint.m_Value.Min() > bds.m_MinClearance )
+        {
+            aSizes.SetMinClearance( constraint.m_Value.Min() );
+            aSizes.SetClearanceSource( constraint.m_RuleName );
+        }
+    }
+
     int  trackWidth = bds.m_TrackMinWidth;
     bool found = false;
     aSizes.SetWidthSource( _( "board minimum track width" ) );