Index: src/signs_gui.cpp
===================================================================
--- src/signs_gui.cpp	(revision 26826)
+++ src/signs_gui.cpp	(working copy)
@@ -160,7 +160,6 @@
 
 		/* Initialize the text edit widget */
 		this->querystrings[WID_SIL_FILTER_TEXT] = &this->filter_editbox;
-		this->filter_editbox.ok_button = WID_SIL_FILTER_ENTER_BTN;
 		this->filter_editbox.cancel_button = QueryString::ACTION_CLEAR;
 
 		/* Initialize the filtering variables */