diff --git a/C64_keyboard/C64_matrix.sc b/C64_keyboard/C64_matrix.sc
index 75bb99a..ad15174 100644
--- a/C64_keyboard/C64_matrix.sc
+++ b/C64_keyboard/C64_matrix.sc
@@ -9,12 +9,12 @@ matrix
 	debounce 5
 	blocking 1
 
-	sense			PB6			PB2			PB3			PB1		PF7		PF6			PF5		PF4		PD3
-	strobe	PD1		1			BACK_QUOTE	TAB			ESC		SPACE	LCTRL		Q		2		UNASSIGNED
-	strobe	PD0		3			W			A			LSHIFT	Z		S			E		4		UNASSIGNED
-	strobe	PD4		5			R			D			X		C		F			T		6		UNASSIGNED
-	strobe	PC6		7			Y			G			V		B		H			U		8		UNASSIGNED
-	strobe	PD7		9			I			J			N		M		K			O		0		UNASSIGNED
+	sense			PB6		PB2			PB3			PB1		PF7		PF6			PF5		PF4		PD3
+	strobe	PD1		1		BACK_QUOTE	TAB			ESC		SPACE	LCTRL		Q		2		UNASSIGNED
+	strobe	PD0		3		W			A			LSHIFT	Z		S			E		4		UNASSIGNED
+	strobe	PD4		5		R			D			X		C		F			T		6		UNASSIGNED
+	strobe	PC6		7		Y			G			V		B		H			U		8		UNASSIGNED
+	strobe	PD7		9		I			J			N		M		K			O		0		UNASSIGNED
 	strobe	PE6		MINUS		P			L			COMMA	PERIOD	SEMICOLON	LEFT_BRACE	EQUAL	UNASSIGNED
 	strobe	PB4		INSERT		RIGHT_BRACE	QUOTE		SLASH	RSHIFT	BACKSLASH	DELETE	HOME	PAGE_UP
 	strobe	PB5		BACKSPACE	ENTER		RIGHT		DOWN	F1		F3			F5		F7		UNASSIGNED
@@ -29,7 +29,7 @@ end
 # asterisk = RIGHT_BRACE
 # minus = EQUAL
 # plus = MINUS
-# @ = LEFT_BRACE
+# at '@' = LEFT_BRACE
 # ctrl = TAB
 # lshift = LSHIFT
 # rshift = RSHIFT
@@ -38,7 +38,7 @@ end
 # semicolon = QUOTE
 
 macroblock
-	macro F7 LCTRL				#C= + F7 = F12
+	macro F7 LCTRL				# C= + F7 = F12
 		PUSH_META CLEAR_META ALL
 		PRESS F12
 		POP_ALL_META