diff --git a/src/common/valgen.cpp b/src/common/valgen.cpp
index ccbcc7c07f..bc5d8c806f 100644
--- a/src/common/valgen.cpp
+++ b/src/common/valgen.cpp
@@ -121,6 +121,9 @@ bool wxGenericValidator::Copy(const wxGenericValidator& val)
 #if wxUSE_DATETIME
     m_pDateTime = val.m_pDateTime;
 #endif // wxUSE_DATETIME
+    m_pFileName = val.m_pFileName;
+    m_pFloat = val.m_pFloat;
+    m_pDouble = val.m_pDouble;
 
     return true;
 }