diff --git a/basictypes.py b/basictypes.py
index 281401d..1b40907 100644
--- a/basictypes.py
+++ b/basictypes.py
@@ -93,7 +93,7 @@ class StraightLine:
     def intercept(self, line) -> Point:
         # Basically when the two lines have the same cords (x,y)
         # As a formula x = (b2 - b1)/ (m1 + m2) to find X, then apply y = mx + b on any line
-        x = (line.get_b() - self.get_b()) / (line.get_m() + line.get_m())
+        x = (line.get_b() - self.get_b()) / (line.get_m() + self.get_m())
         y = self.get_m()*x + self.get_b() # Inline to reduce overhead
         return Point(x, y)