diff --git a/app/models/fluentd/agent/td_agent.rb b/app/models/fluentd/agent/td_agent.rb
index 52f388e..f279925 100644
--- a/app/models/fluentd/agent/td_agent.rb
+++ b/app/models/fluentd/agent/td_agent.rb
@@ -27,7 +27,7 @@ class Fluentd
       end
 
       def version
-        `td-agent --version`.strip
+        `/usr/sbin/td-agent --version`.strip
       end
 
       private