diff --git a/lib/fluent/plugin/parser_syslog.rb b/lib/fluent/plugin/parser_syslog.rb
index 778818a145..ea899169d6 100644
--- a/lib/fluent/plugin/parser_syslog.rb
+++ b/lib/fluent/plugin/parser_syslog.rb
@@ -106,7 +106,7 @@ def parse_plain(text, &block)
             when "pri"
               record['pri'] = value.to_i
             when "time"
-              time = @mutex.synchronize { @time_parser.parse(value.gsub(/ +/, ' ')) }
+              time = @mutex.synchronize { @time_parser.parse(value.squeeze(' ')) }
               record[name] = value if @keep_time_key
             else
               record[name] = value