diff --git a/src/ruby/ycp/builtins.rb b/src/ruby/ycp/builtins.rb
index 522ae727..02517038 100644
--- a/src/ruby/ycp/builtins.rb
+++ b/src/ruby/ycp/builtins.rb
@@ -106,8 +106,19 @@ def self.size object
 
     # Initialize random number generator - srandom(<int>)
     # Get the current random number generator seed - int srandom()
-    def self.srandom
-      raise "Builtin srandom() is not implemented yet"
+    def self.srandom *param
+      if param.empty?
+        # srandom()
+        t = Time.now.to_i
+        srand t
+        t
+      else
+        # srandom(int)
+        p = param.first
+
+        srand p unless p.nil?
+        nil
+      end
     end
 
     # - Unions of lists
diff --git a/tests/ruby/builtins_test.rb b/tests/ruby/builtins_test.rb
index e9f36fe4..1e9d2899 100644
--- a/tests/ruby/builtins_test.rb
+++ b/tests/ruby/builtins_test.rb
@@ -253,4 +253,10 @@ def test_isempty
     assert_equal false, YCP::Builtins.isempty("foo")
   end
 
+  def test_srandom
+    assert_equal nil, YCP::Builtins.srandom(nil)
+    assert YCP::Builtins.srandom() > 0
+    assert_equal nil, YCP::Builtins.srandom(10)
+  end
+
 end