diff --git a/ext/pathname/pathname.c b/ext/pathname/pathname.c
index 9cf6c32039..70f82583a1 100644
--- a/ext/pathname/pathname.c
+++ b/ext/pathname/pathname.c
@@ -1092,10 +1092,10 @@ s_glob_i(RB_BLOCK_CALL_FUNC_ARGLIST(elt, klass))
 static VALUE
 path_s_glob(int argc, VALUE *argv, VALUE klass)
 {
-    VALUE args[2];
+    VALUE args[3];
     int n;
 
-    n = rb_scan_args(argc, argv, "11", &args[0], &args[1]);
+    n = rb_scan_args(argc, argv, "12", &args[0], &args[1], &args[2]);
     if (rb_block_given_p()) {
         return rb_block_call(rb_cDir, id_glob, n, args, s_glob_i, klass);
     }
diff --git a/test/pathname/test_pathname.rb b/test/pathname/test_pathname.rb
index 8e6681232b..076a73e50b 100644
--- a/test/pathname/test_pathname.rb
+++ b/test/pathname/test_pathname.rb
@@ -1251,6 +1251,17 @@ class TestPathname < Test::Unit::TestCase
     }
   end
 
+  def test_s_glob_3args
+    with_tmpchdir('rubytest-pathname') {|dir|
+      open("f", "w") {|f| f.write "abc" }
+      Dir.chdir("/") {
+        assert_equal(
+          [Pathname("."), Pathname(".."), Pathname("f")],
+          Pathname.glob("*", File::FNM_DOTMATCH, base: dir).sort)
+      }
+    }
+  end
+
   def test_s_getwd
     wd = Pathname.getwd
     assert_kind_of(Pathname, wd)