diff --git a/hyperweb.cpp b/hyperweb.cpp
index 194cc6fe..d8b5c4e3 100644
--- a/hyperweb.cpp
+++ b/hyperweb.cpp
@@ -14,9 +14,14 @@
 #define CAP_INV 0
 #define CAP_URL 1
 #define GLES_ONLY
-#define MAXMDIM 3
 #define CAP_COMPLEX2 0
 
+#if CAP_ROGUEVIZ
+#define MAXMDIM 4
+#else
+#define MAXMDIM 3
+#endif
+
 // we want newconformist, but we don't want CAP_GD there
 #define CAP_NCONF 1
 #define CAP_GD 0