diff --git a/euclid.cpp b/euclid.cpp
index 0f8a4b1c..65b75831 100644
--- a/euclid.cpp
+++ b/euclid.cpp
@@ -1359,7 +1359,7 @@ EX void generate() {
 EX bool in() { 
   if(fake::in()) return FPIU(in()); 
   if(geometry == gCubeTiling && (reg3::cubes_reg3 || !PURE)) return false;
-  return euclid && standard_tiling(); 
+  return meuclid && standard_tiling();
   }
 
 EX bool in(int dim) { return in() && WDIM == dim; }