diff --git a/sdlpp/sdlpp_collision.cpp b/sdlpp/sdlpp_collision.cpp
index 63ad7e1..3ab0d42 100644
--- a/sdlpp/sdlpp_collision.cpp
+++ b/sdlpp/sdlpp_collision.cpp
@@ -72,6 +72,16 @@ bool intersects( const SDLPP::CollisionPolygon &p1,
     if ( p1.rightmost() < p2.leftmost() || p2.rightmost() < p1.leftmost() ||
          p1.bottommost() < p2.topmost() || p2.bottommost() < p1.topmost() )
         return false;
+    if ( p1.leftmost() < p2.leftmost() && p1.topmost() < p2.topmost() &&
+         p1.rightmost() > p2.rightmost() &&
+         p1.bottommost() > p2.bottommost() ) {
+        return true;
+    }
+    if ( p2.leftmost() < p1.leftmost() && p2.topmost() < p1.topmost() &&
+         p2.rightmost() > p1.rightmost() &&
+         p2.bottommost() > p1.bottommost() ) {
+        return true;
+    }
     for ( auto &line : p1.getLines() ) {
         for ( auto &line2 : p2.getLines() ) {
             if ( linesCross( line, line2 ) )