diff --git a/lib/splunk_logging.rb b/lib/splunk_logging.rb
index 9f9d7d1fc..5c654aa5e 100644
--- a/lib/splunk_logging.rb
+++ b/lib/splunk_logging.rb
@@ -5,9 +5,13 @@ module SplunkLogging
     end
   end
   def add_with_splunk(arg1, log_hash = nil, arg3 = nil, &block)
-    string = format_hash(log_hash).dup
-    string << " pid=#{Process.pid} "
-    string << " time=#{Time.now.to_i} "
+    if log_hash
+      string = format_hash(log_hash).dup
+      string << " pid=#{Process.pid} "
+      string << " time=#{Time.now.to_i} "
+    else
+      string = log_hash
+    end
     add_without_splunk(arg1, string, arg3, &block)
   end
   def format_hash(hash)