diff --git a/src/plugins/lua/echotest.lua b/src/plugins/lua/echotest.lua
index dcbc5d4888..e37d2f2086 100644
--- a/src/plugins/lua/echotest.lua
+++ b/src/plugins/lua/echotest.lua
@@ -14,7 +14,7 @@ logger = require('janus-logger')
 
 -- Example details
 name = "echotest.lua"
-logger.prefix(colors.blue .. name .. colors.reset)
+logger.prefix("[" .. colors.blue .. name .. colors.reset .. "]")
 logger.print("Loading...")
 
 -- State and properties
diff --git a/src/plugins/lua/videoroom.lua b/src/plugins/lua/videoroom.lua
index 91d39d5848..117e5783db 100644
--- a/src/plugins/lua/videoroom.lua
+++ b/src/plugins/lua/videoroom.lua
@@ -14,7 +14,7 @@ logger = require('janus-logger')
 
 -- Example details
 name = "videoroom.lua"
-logger.prefix(colors.blue .. name .. colors.reset)
+logger.prefix("[" .. colors.blue .. name .. colors.reset .. "]")
 logger.print("Loading...")
 
 -- State and properties