diff --git a/keywords.txt b/keywords.txt
index 022b433..6373a2e 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -14,7 +14,7 @@ getKeyDown	KEYWORD2
 BUTTON1	LITERAL1
 BUTTON2	LITERAL1
 BUTTON3	LITERAL1
-BUTTON4 LITERAL1
+BUTTON4	LITERAL1
 BUTTON5	LITERAL1
 BUTTON6	LITERAL1
 BUTTON7	LITERAL1