diff --git a/pcbnew/board.cpp b/pcbnew/board.cpp
index 024e11e0e3..7ca05dec68 100644
--- a/pcbnew/board.cpp
+++ b/pcbnew/board.cpp
@@ -75,6 +75,7 @@ BOARD::BOARD() :
         m_timeStamp( 1 ),
         m_paper( PAGE_INFO::A4 ),
         m_project( nullptr ),
+        m_userUnits( EDA_UNITS::MILLIMETRES ),
         m_designSettings( new BOARD_DESIGN_SETTINGS( nullptr, "board.design_settings" ) ),
         m_NetInfo( this )
 {