diff --git a/src/common/dbgrid.cpp b/src/common/dbgrid.cpp
index bdb5aa196a..ed58753424 100644
--- a/src/common/dbgrid.cpp
+++ b/src/common/dbgrid.cpp
@@ -276,7 +276,9 @@ wxString wxDbGridTableBase::GetTypeName(int WXUNUSED(row), int col)
             switch(m_data->GetColDefs()[(m_ColInfo[col].DbCol)].SqlCtype)
             {
                 case SQL_C_CHAR:
+#ifndef __UNIX__
                 case SQL_C_WCHAR:
+#endif                 
                     return wxGRID_VALUE_STRING;
                 case SQL_C_SHORT:
                 case SQL_C_SSHORT:
diff --git a/src/common/dbtable.cpp b/src/common/dbtable.cpp
index 3e33499159..50c832a5f2 100644
--- a/src/common/dbtable.cpp
+++ b/src/common/dbtable.cpp
@@ -1291,7 +1291,9 @@ void wxDbTable::BuildWhereClause(wxString &pWhereClause, int typeOfWhere,
             switch(colDefs[colNo].SqlCtype)
             {
                 case SQL_C_CHAR:
+#ifndef __UNIX__
                 case SQL_C_WCHAR:
+#endif                 
                 //case SQL_C_WXCHAR:  SQL_C_WXCHAR is covered by either SQL_C_CHAR or SQL_C_WCHAR
                     colValue.Printf(wxT("'%s'"), (UCHAR FAR *) colDefs[colNo].PtrDataObj);
                     break;
@@ -2177,7 +2179,9 @@ void wxDbTable::ClearMemberVar(UWORD colNo, bool setToNull)
     switch(colDefs[colNo].SqlCtype)
     {
         case SQL_C_CHAR:
+#ifndef __UNIX__
         case SQL_C_WCHAR:
+#endif
         //case SQL_C_WXCHAR:  SQL_C_WXCHAR is covered by either SQL_C_CHAR or SQL_C_WCHAR
             ((UCHAR FAR *) colDefs[colNo].PtrDataObj)[0]    = 0;
             break;