diff --git a/LCD.py b/LCD.py
index cda9854..5267133 100644
--- a/LCD.py
+++ b/LCD.py
@@ -88,7 +88,7 @@ class LCD:
         elif line == 4:
             lcd_line = self.LCD_LINE_4
         else:
-            raise ValueError(f'line number {lcd_line} out of range')
+            raise ValueError(f'line number {line} out of range')
 
         string = string.ljust(self.LCD_WIDTH," ")