diff --git a/pcb_calculator/calculator_panels/panel_electrical_spacing_iec60664_base.cpp b/pcb_calculator/calculator_panels/panel_electrical_spacing_iec60664_base.cpp
index 12b731ac4c..90217963fc 100644
--- a/pcb_calculator/calculator_panels/panel_electrical_spacing_iec60664_base.cpp
+++ b/pcb_calculator/calculator_panels/panel_electrical_spacing_iec60664_base.cpp
@@ -178,7 +178,7 @@ PANEL_ELECTRICAL_SPACING_IEC60664_BASE::PANEL_ELECTRICAL_SPACING_IEC60664_BASE(
 
 	m_staticText52 = new wxStaticText( sbSizerMiddle->GetStaticBox(), wxID_ANY, _("Pollution Degree:"), wxDefaultPosition, wxDefaultSize, 0 );
 	m_staticText52->Wrap( -1 );
-	m_staticText52->SetToolTip( _("PD1: No pollution or only dry, non-conductive pollution occurs\n\nPD2: Only non-conductive pollution occurs . Condensation may occur.\n\nPD3: Conductive pollution occurs, or non-conductive pollution occurs which becomes conductive due to expected condensation.\n\nPD4: Continous conductivity occurs due to conductive dust, rain, ...") );
+	m_staticText52->SetToolTip( _("PD1: No pollution or only dry, non-conductive pollution occurs\n\nPD2: Only non-conductive pollution occurs . Condensation may occur.\n\nPD3: Conductive pollution occurs, or non-conductive pollution occurs which becomes conductive due to expected condensation.\n\nPD4: Continuous conductivity occurs due to conductive dust, rain, ...") );
 
 	fgSizer11->Add( m_staticText52, 0, wxALIGN_CENTER_VERTICAL|wxBOTTOM|wxRIGHT|wxLEFT, 5 );
 
diff --git a/pcb_calculator/calculator_panels/panel_electrical_spacing_iec60664_base.fbp b/pcb_calculator/calculator_panels/panel_electrical_spacing_iec60664_base.fbp
index f4c245b632..d3076200c2 100644
--- a/pcb_calculator/calculator_panels/panel_electrical_spacing_iec60664_base.fbp
+++ b/pcb_calculator/calculator_panels/panel_electrical_spacing_iec60664_base.fbp
@@ -1574,7 +1574,7 @@
                               <property name="style"></property>
                               <property name="subclass">; ; forward_declare</property>
                               <property name="toolbar_pane">0</property>
-                              <property name="tooltip">PD1: No pollution or only dry, non-conductive pollution occurs&#x0A;&#x0A;PD2: Only non-conductive pollution occurs . Condensation may occur.&#x0A;&#x0A;PD3: Conductive pollution occurs, or non-conductive pollution occurs which becomes conductive due to expected condensation.&#x0A;&#x0A;PD4: Continous conductivity occurs due to conductive dust, rain, ...</property>
+                              <property name="tooltip">PD1: No pollution or only dry, non-conductive pollution occurs&#x0A;&#x0A;PD2: Only non-conductive pollution occurs . Condensation may occur.&#x0A;&#x0A;PD3: Conductive pollution occurs, or non-conductive pollution occurs which becomes conductive due to expected condensation.&#x0A;&#x0A;PD4: Continuous conductivity occurs due to conductive dust, rain, ...</property>
                               <property name="window_extra_style"></property>
                               <property name="window_name"></property>
                               <property name="window_style"></property>