diff --git a/penrose.cpp b/penrose.cpp
index 188af6e6..d074a9ef 100644
--- a/penrose.cpp
+++ b/penrose.cpp
@@ -311,8 +311,8 @@ struct hrmap_kite : hrmap {
     }
 
   transmatrix relative_matrix(heptagon *h2, heptagon *h1) override {
-    /* if(gmatrix0.count(h2->c7) && gmatrix0.count(h1->c7))
-      return inverse(gmatrix0[h1->c7]) * gmatrix0[h2->c7]; */
+    if(gmatrix0.count(h2->c7) && gmatrix0.count(h1->c7))
+      return inverse(gmatrix0[h1->c7]) * gmatrix0[h2->c7];
     transmatrix gm = Id, where = Id;
     while(h1 != h2) {
       if(h1->distance <= h2->distance)