diff --git a/lib/fluent/plugin/out_sumologic.rb b/lib/fluent/plugin/out_sumologic.rb
index e4b6ed2..450a181 100644
--- a/lib/fluent/plugin/out_sumologic.rb
+++ b/lib/fluent/plugin/out_sumologic.rb
@@ -293,6 +293,19 @@ def sumo_timestamp(time)
     time.to_s.length == 13 ? time : time * 1000
   end
 
+  # Convert log to string and strip it
+  def log_to_str(log)
+    if log.is_a?(Array) or log.is_a?(Hash)
+      log = Yajl.dump(log)
+    end
+
+    unless log.nil?
+      log.strip!
+    end
+
+    return log
+  end
+
   # This method is called every flush interval. Write the buffer chunk
   def write(chunk)
     messages_list = {}
@@ -313,10 +326,7 @@ def write(chunk)
       when 'logs'
         case log_format
         when 'text'
-          log = record[@log_key]
-          unless log.nil?
-            log.strip!
-          end
+          log = log_to_str(record[@log_key])
         when 'json_merge'
           if @add_timestamp
             record = { @timestamp_key => sumo_timestamp(time) }.merge(record)
@@ -334,10 +344,7 @@ def write(chunk)
           log = dump_log(record)
         end
       when 'metrics'
-        log = record[@log_key]
-        unless log.nil?
-          log.strip!
-        end
+        log = log_to_str(record[@log_key])
       end
 
       unless log.nil?
diff --git a/test/plugin/test_out_sumologic.rb b/test/plugin/test_out_sumologic.rb
index c6822a9..b4d85cb 100644
--- a/test/plugin/test_out_sumologic.rb
+++ b/test/plugin/test_out_sumologic.rb
@@ -671,4 +671,46 @@ def test_emit_json_merge_timestamp_compress_gzip
                      times:1
   end
 
-end
\ No newline at end of file
+  def test_emit_text_from_array
+    config = %{
+      endpoint        https://collectors.sumologic.com/v1/receivers/http/1234
+      log_format      text
+      source_category test
+      source_host     test
+      source_name     test
+
+    }
+    driver = create_driver(config)
+    time = event_time
+    stub_request(:post, 'https://collectors.sumologic.com/v1/receivers/http/1234')
+    driver.run do
+      driver.feed("output.test", time, {'foo' => 'bar', 'message' => ['test', 'test2']})
+    end
+    assert_requested :post, "https://collectors.sumologic.com/v1/receivers/http/1234",
+                     headers: {'X-Sumo-Category'=>'test', 'X-Sumo-Client'=>'fluentd-output', 'X-Sumo-Host'=>'test', 'X-Sumo-Name'=>'test'},
+                     body: '["test","test2"]',
+                     times:1
+  end
+
+  def test_emit_text_from_dict
+    config = %{
+      endpoint        https://collectors.sumologic.com/v1/receivers/http/1234
+      log_format      text
+      source_category test
+      source_host     test
+      source_name     test
+
+    }
+    driver = create_driver(config)
+    time = event_time
+    stub_request(:post, 'https://collectors.sumologic.com/v1/receivers/http/1234')
+    driver.run do
+      driver.feed("output.test", time, {'foo' => 'bar', 'message' => {'test': 'test2', 'test3': 'test4'}})
+    end
+    assert_requested :post, "https://collectors.sumologic.com/v1/receivers/http/1234",
+                     headers: {'X-Sumo-Category'=>'test', 'X-Sumo-Client'=>'fluentd-output', 'X-Sumo-Host'=>'test', 'X-Sumo-Name'=>'test'},
+                     body: '{"test":"test2","test3":"test4"}',
+                     times:1
+  end
+
+end