diff --git a/parse.y b/parse.y
index b917a3d2f4..1348842b91 100644
--- a/parse.y
+++ b/parse.y
@@ -1673,7 +1673,7 @@ command		: fcall command_args       %prec tLOWEST
 		    /*%%%*/
 			$$ = $1;
 			$$->nd_args = $2;
-			nd_set_last_loc($1, nd_last_loc($2));
+			nd_set_last_loc($1, @2.last_loc);
 		    /*%
 			$$ = dispatch2(command, $1, $2);
 		    %*/
@@ -1686,7 +1686,7 @@ command		: fcall command_args       %prec tLOWEST
 			fixpos($$, $1);
 		    /*%%%*/
 			$$->nd_loc = @$;
-			nd_set_last_loc($1, nd_last_loc($2));
+			nd_set_last_loc($1, @2.last_loc);
 		    /*%
 		    %*/
 		    }
diff --git a/test/ruby/test_syntax.rb b/test/ruby/test_syntax.rb
index 6d8d8f5f32..7e25d965df 100644
--- a/test/ruby/test_syntax.rb
+++ b/test/ruby/test_syntax.rb
@@ -179,6 +179,11 @@ class TestSyntax < Test::Unit::TestCase
       bug13756 = '[ruby-core:82113] [Bug #13756]'
       assert_valid_syntax("defined? foo(**{})", bug13756)
     end;
+    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    begin;
+      bug15271 = '[ruby-core:89648] [Bug #15271]'
+      assert_valid_syntax("a **{}", bug15271)
+    end;
   end
 
   def test_keyword_self_reference
diff --git a/version.h b/version.h
index d89fc2804a..8e0f2a198e 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.5.4"
 #define RUBY_RELEASE_DATE "2018-11-07"
-#define RUBY_PATCHLEVEL 109
+#define RUBY_PATCHLEVEL 110
 
 #define RUBY_RELEASE_YEAR 2018
 #define RUBY_RELEASE_MONTH 11