diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index d788a375cb..4d15e1a75a 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+2017-05-23  Dilian Palauzov  <git-dpa@aegee.org>
+
+	* elf32-arc.c (arc_elf_merge_attributes): Add fall through
+	comments.
+
 2017-05-22  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* elf64-x86-64.c (elf_x86_64_link_setup_gnu_properties): Use
diff --git a/bfd/elf32-arc.c b/bfd/elf32-arc.c
index 3e99cab736..ef0d89340d 100644
--- a/bfd/elf32-arc.c
+++ b/bfd/elf32-arc.c
@@ -728,9 +728,11 @@ arc_elf_merge_attributes (bfd *ibfd, struct bfd_link_info *info)
 
 	case Tag_ARC_ABI_pic:
 	  tagname = "PIC";
+	  /* fall through */
 	case Tag_ARC_ABI_sda:
 	  if (!tagname)
 	    tagname = "SDA";
+	  /* fall through */
 	case Tag_ARC_ABI_tls:
 	  {
 	    const char *tagval[] = { "Absent", "MWDT", "GNU" };
@@ -756,9 +758,11 @@ arc_elf_merge_attributes (bfd *ibfd, struct bfd_link_info *info)
 
 	case Tag_ARC_ABI_double_size:
 	  tagname = "Double size";
+	  /* fall through */
 	case Tag_ARC_ABI_enumsize:
 	  if (!tagname)
 	    tagname = "Enum size";
+	  /* fall through */
 	case Tag_ARC_ABI_exceptions:
 	  if (!tagname)
 	    tagname = "ABI exceptions";