diff --git a/keywords.txt b/keywords.txt
index 35f4450..9dbad34 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -25,17 +25,17 @@ getLastTemperature	KEYWORD2
 # Instances (KEYWORD2)
 #######################################
 
-co2 KEYWORD2
+co2	KEYWORD2
 
 
 #######################################
 # Constants (LITERAL1)
 #######################################
 
-MHZ14A  LITERAL1
-MHZ19B  LITERAL1
+MHZ14A	LITERAL1
+MHZ19B	LITERAL1
 
-STATUS_NO_RESPONSE  LITERAL1
-STATUS_CHECKSUM_MISMATCH  LITERAL1
-STATUS_INCOMPLETE LITERAL1
-STATUS_NOT_READY  LITERAL1
\ No newline at end of file
+STATUS_NO_RESPONSE	LITERAL1
+STATUS_CHECKSUM_MISMATCH	LITERAL1
+STATUS_INCOMPLETE	LITERAL1
+STATUS_NOT_READY	LITERAL1