diff --git a/ledmatrix.py b/ledmatrix.py
index bb8d755..75e49ab 100755
--- a/ledmatrix.py
+++ b/ledmatrix.py
@@ -75,7 +75,7 @@ class LedMatrix:
 		# The LEDs are laid out in a long string going from north to south,
 		# one step to the east, and then south to north, before thxy	e cycle
 		# starts over.
-		stride = self.strid
+		stride = self.stride
 		phys_addr =  ((x)%self.panelcolumn) + ((y)*self.panelcolumn) + (self.round_down((x)/self.panelcolumn) * self.panelcolumn * self.panelcolumn)
 
 		# if x & 1: