Don't cast away constness.

Change-Id: I04cb49a5fe52bc6de66575228b81db1288bd1959
Reviewed-on: https://code.wireshark.org/review/25948
Reviewed-by: Guy Harris <guy@alum.mit.edu>

1 files changed, 1 insertions, 1 deletions

diff --git a/ui/qt/display_filter_expression_dialog.cpp b/ui/qt/display_filter_expression_dialog.cpp
index 8c19d69c13..68d40702ba 100644
--- a/ui/qt/display_filter_expression_dialog.cpp
+++ b/ui/qt/display_filter_expression_dialog.cpp
@@ -335,7 +335,7 @@ void DisplayFilterExpressionDialog::on_fieldTreeWidget_itemSelectionChanged()
                     } else { // Plain old value_string / VALS
                         const value_string *vals = (const value_string *)hfinfo->strings;
                         if (hfinfo->display & BASE_EXT_STRING)
-                            vals = VALUE_STRING_EXT_VS_P((value_string_ext *)vals);
+                            vals = VALUE_STRING_EXT_VS_P((const value_string_ext *)vals);
                         fillEnumIntValues(vals, base);
                     }
                 }