diff -Nru atril-1.12.2/debian/changelog atril-1.12.2/debian/changelog
--- atril-1.12.2/debian/changelog	2016-01-02 15:06:20.000000000 +0300
+++ atril-1.12.2/debian/changelog	2017-10-30 18:08:25.000000000 +0300
@@ -1,3 +1,10 @@
+atril (1.12.2-1ubuntu1) UNRELEASED; urgency=medium
+
+  * fix-thumbnailer-crash.patch: new patch. Disables thumbnail generation
+    for epub documents, stopping atril-thumbnailer crashes (LP: #1540018)
+
+ -- Vlad Orlov <monsta@inbox.ru>  Mon, 30 Oct 2017 18:06:38 +0300
+
 atril (1.12.2-1) unstable; urgency=medium
 
   [ Martin Wimpress ]
diff -Nru atril-1.12.2/debian/patches/fix-thumbnailer-crash.patch atril-1.12.2/debian/patches/fix-thumbnailer-crash.patch
--- atril-1.12.2/debian/patches/fix-thumbnailer-crash.patch	1970-01-01 03:00:00.000000000 +0300
+++ atril-1.12.2/debian/patches/fix-thumbnailer-crash.patch	2017-10-30 18:06:22.000000000 +0300
@@ -0,0 +1,23 @@
+From b479e541d113881b10ef7c0641688d62600c79a9 Mon Sep 17 00:00:00 2001
+From: monsta <monsta@inbox.ru>
+Date: Mon, 31 Oct 2016 11:49:47 +0300
+Subject: [PATCH] thumbnailer: skip epub files
+
+temporary workaround for stupid segfaults - until we implement
+proper thumbnailing in epub backend
+---
+ thumbnailer/Makefile.am | 1 +
+ 1 file changed, 1 insertion(+)
+
+Index: atril-1.12.2/thumbnailer/Makefile.am
+===================================================================
+--- atril-1.12.2.orig/thumbnailer/Makefile.am
++++ atril-1.12.2/thumbnailer/Makefile.am
+@@ -33,6 +33,7 @@ thumbnailer_DATA = $(thumbnailer_in_file
+ atril.thumbnailer: $(thumbnailer_in_files)
+ 	$(AM_V_GEN)sed \
+ 		-e "s|\@ATRIL_MIME_TYPES\@|$(ATRIL_MIME_TYPES)|" \
++		-e "s|application/epub+zip;||" \
+ 		$< > $@
+ 
+ EXTRA_DIST =         	\
diff -Nru atril-1.12.2/debian/patches/series atril-1.12.2/debian/patches/series
--- atril-1.12.2/debian/patches/series	1970-01-01 03:00:00.000000000 +0300
+++ atril-1.12.2/debian/patches/series	2017-10-30 18:03:57.000000000 +0300
@@ -0,0 +1 @@
+fix-thumbnailer-crash.patch