Index: gc_lang/fr/oxt/DictOptions/SearchWords.py
==================================================================
--- gc_lang/fr/oxt/DictOptions/SearchWords.py
+++ gc_lang/fr/oxt/DictOptions/SearchWords.py
@@ -207,15 +207,17 @@
         try:
             if sFlexPattern:
                 re.compile(sFlexPattern)
         except:
             MessageBox(self.xDocument, self.dUI.get("regex_error_flexion", "#err"), self.dUI.get("error", "#err"), nBoxType=ERRORBOX)
+            sFlexPattern = ""
         try:
             if sTagsPattern:
                 re.compile(sTagsPattern)
         except:
             MessageBox(self.xDocument, self.dUI.get("regex_error_tags", "#err"), self.dUI.get("error", "#err"), nBoxType=ERRORBOX)
+            sTagsPattern = ""
         xGridDataModel = self.xGridModel.GridDataModel
         xGridDataModel.removeAllRows()
         for i, aEntry in enumerate(self.oSpellChecker.select(sFlexPattern, sTagsPattern)):
             xGridDataModel.addRow(i, aEntry)
             i += 1