diff --git a/src/propgrid/property.cpp b/src/propgrid/property.cpp
index 13ce543918..536282b65a 100644
--- a/src/propgrid/property.cpp
+++ b/src/propgrid/property.cpp
@@ -2548,7 +2548,7 @@ void wxPGProperty::Empty()
 
 wxPGProperty* wxPGProperty::GetItemAtY( unsigned int y ) const
 {
-    unsigned int nextItem;
+    unsigned int nextItem = 0;
     return GetItemAtY( y, GetGrid()->GetRowHeight(), &nextItem);
 }