--- a/Makefile	Wed Mar 23 23:45:30 2016 +0200
+++ b/Makefile	Thu Mar 24 00:14:17 2016 +0200
@@ -333,11 +333,24 @@
 		$(INSTALL_DATA) $$f $(datadir); \
 	done
 
+OLD_DICT_FILES := gadict-abbr.dict-c5 gadict-adjective-en-ru.dict-c5 \
+gadict-adverb-en-ru.dict-c5 gadict-conjunction-en-ru.dict-c5            \
+gadict-en-ru.dict-c5 gadict-irregular-verbs-en-ru.dict-c5               \
+gadict-numeral-en-ru.dict-c5 gadict-phrasal-verbs-en-ru.dict-c5         \
+gadict-preposition-en-ru.dict-c5 gadict-pronoun-en-ru.dict-c5           \
+gadict-regular-verbs-en-ru.dict-c5
+
+OLD_DICTDZ_FILES := $(OLD_DICT_FILES:.dict-c5=.dict.dz)
+OLD_INDEX_FILES := $(OLD_DICT_FILES:.dict-c5=.index)
+
 .PHONY: uninstall
 uninstall:
 	for f in $(DICTDZ_FILES) $(INDEX_FILES); do \
 		rm -f $(datadir)/$$f; \
 	done
+	for f in $(OLD_DICTDZ_FILES) $(OLD_INDEX_FILES); do \
+		rm -f $(datadir)/$$f; \
+	done
 
 ################################################################
 # Documentation targets.