1 files changed, 1 insertions, 1 deletions
diff --git a/vec2.js b/vec2.js
index 8bc8410..973613f 100644
--- a/vec2.js
+++ b/vec2.js
@@ -43,7 +43,7 @@ vec2.prototype.contains = function(n){
 }
 // assumes (vec2)v falls to the right of (vec2)this
 vec2.prototype.intersects = function(v){
-  return (this.b > v.a) || (v.b > this.a)
+  return (this.b > v.a && this.b < v.b) || (v.b > this.a && v.b < this.b)
 }
 vec2.prototype.union = function(v){
 	if (this.intersects(v)) {