diff --git a/XDistance.py b/XDistance.py
index 535e2dd..a7a14eb 100644
--- a/XDistance.py
+++ b/XDistance.py
@@ -1,7 +1,7 @@
 
 from Constraint import Constraint
 
-class Vertical(Constraint):
+class XDistance(Constraint):
     def __init__(self, shape1, pt1, shape2, pt2, dist):
         self.shape1 = shape1
         self.pt1 = pt1
diff --git a/YDistance.py b/YDistance.py
index 003a612..b98f244 100644
--- a/YDistance.py
+++ b/YDistance.py
@@ -1,7 +1,7 @@
 
 from Constraint import Constraint
 
-class Horizontal(Constraint):
+class YDistance(Constraint):
     def __init__(self, shape1, pt1, shape2, pt2, dist):
         self.shape1 = shape1
         self.pt1 = pt1