diff --git a/common/dialogs/panel_setup_netclasses_base.cpp b/common/dialogs/panel_setup_netclasses_base.cpp
index 1b3960abb5..8276c899df 100644
--- a/common/dialogs/panel_setup_netclasses_base.cpp
+++ b/common/dialogs/panel_setup_netclasses_base.cpp
@@ -23,7 +23,7 @@ PANEL_SETUP_NETCLASSES_BASE::PANEL_SETUP_NETCLASSES_BASE( wxWindow* parent, wxWi
 	wxStaticBoxSizer* sbSizerUpper;
 	sbSizerUpper = new wxStaticBoxSizer( new wxStaticBox( m_netclassesPane, wxID_ANY, _("Net Classes") ), wxVERTICAL );
 
-	sbSizerUpper->SetMinSize( wxSize( -1,200 ) );
+	sbSizerUpper->SetMinSize( wxSize( -1,140 ) );
 	m_netclassGrid = new WX_GRID( m_netclassesPane, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxBORDER_DEFAULT|wxHSCROLL|wxTAB_TRAVERSAL|wxVSCROLL );
 
 	// Grid
@@ -85,7 +85,7 @@ PANEL_SETUP_NETCLASSES_BASE::PANEL_SETUP_NETCLASSES_BASE( wxWindow* parent, wxWi
 	m_netclassesPane->SetSizer( sbSizerUpper );
 	m_netclassesPane->Layout();
 	sbSizerUpper->Fit( m_netclassesPane );
-	bMargins->Add( m_netclassesPane, 4, wxALL|wxEXPAND, 5 );
+	bMargins->Add( m_netclassesPane, 2, wxALL|wxEXPAND, 5 );
 
 	m_membershipPane = new wxPanel( this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL );
 	wxStaticBoxSizer* sbMembership;
diff --git a/common/dialogs/panel_setup_netclasses_base.fbp b/common/dialogs/panel_setup_netclasses_base.fbp
index 26107372ac..2b82b2bdb1 100644
--- a/common/dialogs/panel_setup_netclasses_base.fbp
+++ b/common/dialogs/panel_setup_netclasses_base.fbp
@@ -67,7 +67,7 @@
                         <object class="sizeritem" expanded="1">
                             <property name="border">5</property>
                             <property name="flag">wxALL|wxEXPAND</property>
-                            <property name="proportion">4</property>
+                            <property name="proportion">2</property>
                             <object class="wxPanel" expanded="1">
                                 <property name="BottomDockable">1</property>
                                 <property name="LeftDockable">1</property>
@@ -122,7 +122,7 @@
                                 <object class="wxStaticBoxSizer" expanded="1">
                                     <property name="id">wxID_ANY</property>
                                     <property name="label">Net Classes</property>
-                                    <property name="minimum_size">-1,200</property>
+                                    <property name="minimum_size">-1,140</property>
                                     <property name="name">sbSizerUpper</property>
                                     <property name="orient">wxVERTICAL</property>
                                     <property name="parent">0</property>