diff --git a/bindings/ruby/defs.h b/bindings/ruby/defs.h
index 6fe57870..85d8205e 100644
--- a/bindings/ruby/defs.h
+++ b/bindings/ruby/defs.h
@@ -219,6 +219,9 @@ notmuch_rb_query_get_string (VALUE self);
 VALUE
 notmuch_rb_query_add_tag_exclude (VALUE self, VALUE tagv);
 
+VALUE
+notmuch_rb_query_set_omit_excluded (VALUE self, VALUE omitv);
+
 VALUE
 notmuch_rb_query_search_threads (VALUE self);
 
diff --git a/bindings/ruby/init.c b/bindings/ruby/init.c
index edcf101c..3fe60fb7 100644
--- a/bindings/ruby/init.c
+++ b/bindings/ruby/init.c
@@ -95,6 +95,12 @@ Init_notmuch (void)
      * Message flag "match"
      */
     rb_define_const (mod, "MESSAGE_FLAG_MATCH", INT2FIX (NOTMUCH_MESSAGE_FLAG_MATCH));
+    /*
+     * Document-const: Notmuch::MESSAGE_FLAG_EXCLUDED
+     *
+     * Message flag "excluded"
+     */
+    rb_define_const (mod, "MESSAGE_FLAG_EXCLUDED", INT2FIX (NOTMUCH_MESSAGE_FLAG_EXCLUDED));
     /*
      * Document-const: Notmuch::TAG_MAX
      *
@@ -235,6 +241,7 @@ Init_notmuch (void)
     rb_define_method (notmuch_rb_cQuery, "sort=", notmuch_rb_query_set_sort, 1); /* in query.c */
     rb_define_method (notmuch_rb_cQuery, "to_s", notmuch_rb_query_get_string, 0); /* in query.c */
     rb_define_method (notmuch_rb_cQuery, "add_tag_exclude", notmuch_rb_query_add_tag_exclude, 1); /* in query.c */
+    rb_define_method (notmuch_rb_cQuery, "omit_excluded=", notmuch_rb_query_set_omit_excluded, 1); /* in query.c */
     rb_define_method (notmuch_rb_cQuery, "search_threads", notmuch_rb_query_search_threads, 0); /* in query.c */
     rb_define_method (notmuch_rb_cQuery, "search_messages", notmuch_rb_query_search_messages, 0); /* in query.c */
     rb_define_method (notmuch_rb_cQuery, "count_messages", notmuch_rb_query_count_messages, 0); /* in query.c */
diff --git a/bindings/ruby/query.c b/bindings/ruby/query.c
index 2a800080..e5ba1b7a 100644
--- a/bindings/ruby/query.c
+++ b/bindings/ruby/query.c
@@ -106,6 +106,24 @@ notmuch_rb_query_add_tag_exclude (VALUE self, VALUE tagv)
     return Qnil;
 }
 
+/*
+ * call-seq: QUERY.omit_excluded=(boolean) => nil
+ *
+ * Specify whether to omit excluded results or simply flag them.
+ * By default, this is set to +true+.
+ */
+VALUE
+notmuch_rb_query_set_omit_excluded (VALUE self, VALUE omitv)
+{
+    notmuch_query_t *query;
+
+    Data_Get_Notmuch_Query (self, query);
+
+    notmuch_query_set_omit_excluded (query, RTEST (omitv));
+
+    return Qnil;
+}
+
 /*
  * call-seq: QUERY.search_threads => THREADS
  *