diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index bf2c4adbc9..50e39ac482 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -123,7 +123,7 @@ class TestSymbol < Test::Unit::TestCase
       true.tap(&:itself)
     end;
 
-    assert_ruby_status([], <<-"end;", timeout: 0.1)
+    assert_ruby_status([], <<-"end;", timeout: 5.0)
       GC.stress = true
       100.times {Proc.new(&:itself)}
     end;