diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index af5185a7e65..2182cff225d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2017-01-03  Pierre-Marie de Rodat  <derodat@adacore.com>
+
+	* dwarf2out.c (gen_enumeration_type_die): When
+	-gno-strict-dwarf, add a DW_AT_encoding attribute.
+
 2017-01-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/78965
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index edb71692033..15b9a30a307 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -20930,6 +20930,11 @@ gen_enumeration_type_die (tree type, dw_die_ref context_die)
 	  if (ENUM_IS_OPAQUE (type))
 	    add_AT_flag (type_die, DW_AT_declaration, 1);
 	}
+      if (!dwarf_strict)
+	add_AT_unsigned (type_die, DW_AT_encoding,
+			 TYPE_UNSIGNED (type)
+			 ? DW_ATE_unsigned
+			 : DW_ATE_signed);
     }
   else if (! TYPE_SIZE (type))
     return type_die;