diff --git a/shmup.cpp b/shmup.cpp
index 806209b5..05771ba6 100644
--- a/shmup.cpp
+++ b/shmup.cpp
@@ -114,7 +114,7 @@ vector<monster*> active, nonvirtual, additional;
 
 cell *findbaseAround(hyperpoint p, cell *around, int maxsteps) {
 
-  if(fake::in()) {
+  if(fake::in() || arb::in_slided()) {
     auto p0 = inverse(ggmatrix(around)) * p;
     virtualRebase(around, p0);
     return around;
@@ -187,13 +187,13 @@ void monster::rebasePat(const transmatrix& new_pat, cell *c2) {
       current_display->which_copy = ggmatrix(base);
     return;
     }
-  if(quotient || fake::in()) {
+  if(quotient || fake::in() || arb::in_slided()) {
     at = inverse(gmatrix[base]) * new_pat;
     transmatrix old_at = at;
     virtualRebase(this);
     fix_to_2(at);
     if(base != c2) {
-      if(fake::in()) println(hlog, "fake error");
+      if(fake::in() || arb::in_slided()) println(hlog, "fake error");
       else {
         auto T = calc_relative_matrix(c2, base, tC0(at));
         base = c2;