1 files changed, 3 insertions, 0 deletions
diff --git a/range.c b/range.c
index 2390c5d38c..27f681767f 100644
--- a/range.c
+++ b/range.c
@@ -1792,6 +1792,9 @@ range_include_internal(VALUE range, VALUE val, int string_use_cover)
         else if (NIL_P(beg)) {
 	    VALUE r = rb_funcall(val, id_cmp, 1, end);
 	    if (NIL_P(r)) return Qfalse;
+            if (RANGE_EXCL(range)) {
+                return RBOOL(rb_cmpint(r, val, end) < 0);
+            }
             return RBOOL(rb_cmpint(r, val, end) <= 0);
         }
 	else if (NIL_P(end)) {