diff --git a/test/fileutils/test_fileutils.rb b/test/fileutils/test_fileutils.rb
index 28488cd27f..fffa2b8853 100644
--- a/test/fileutils/test_fileutils.rb
+++ b/test/fileutils/test_fileutils.rb
@@ -47,7 +47,7 @@ class TestFileUtils < Test::Unit::TestCase
     end
 
     def check_have_symlink?
-      File.symlink nil, nil
+      File.symlink "", ""
     rescue NotImplementedError, Errno::EACCES
       return false
     rescue
diff --git a/test/pathname/test_pathname.rb b/test/pathname/test_pathname.rb
index 4842f96d0f..2917ebb557 100644
--- a/test/pathname/test_pathname.rb
+++ b/test/pathname/test_pathname.rb
@@ -339,7 +339,7 @@ class TestPathname < Test::Unit::TestCase
 
   def has_symlink?
     begin
-      File.symlink(nil, nil)
+      File.symlink("", "")
     rescue NotImplementedError, Errno::EACCES
       return false
     rescue TypeError