diff --git a/pcbnew/microwave/microwave_polygon.cpp b/pcbnew/microwave/microwave_polygon.cpp
index 95a37ade07..7274ad2771 100644
--- a/pcbnew/microwave/microwave_polygon.cpp
+++ b/pcbnew/microwave/microwave_polygon.cpp
@@ -269,13 +269,13 @@ FOOTPRINT* MICROWAVE_TOOL::createPolygonShape()
 
     if( ( ShapeSize.x ) == 0 || ( ShapeSize.y == 0 ) )
     {
-        editFrame.ShowInfoBarError( _( "Shape has a null size!" ) );
+        editFrame.ShowInfoBarError( _( "Shape has a null size." ) );
         return NULL;
     }
 
     if( PolyEdges.size() == 0 )
     {
-        editFrame.ShowInfoBarError( _( "Shape has no points!" ) );
+        editFrame.ShowInfoBarError( _( "Shape has no points." ) );
         return NULL;
     }