diff --git a/graph.cpp b/graph.cpp
index 15b30929..7d24abe7 100644
--- a/graph.cpp
+++ b/graph.cpp
@@ -5342,6 +5342,8 @@ void calcparam() {
 
 int ringcolor = darkena(0xFF, 0, 0xFF);
 
+function<void()> wrap_drawfullmap = drawfullmap;
+
 void drawfullmap() {
 
   DEBB(DF_GRAPH, (debugfile,"draw full map\n"));
@@ -5438,7 +5440,7 @@ void gamescreen(int _darken) {
     rug::actDraw();
     } else
 #endif
-  drawfullmap();
+  wrap_drawfullmap();
 
   if(conformal::includeHistory) conformal::restoreBack();
 
diff --git a/hyper.h b/hyper.h
index fb1f5c92..3be4f5e6 100644
--- a/hyper.h
+++ b/hyper.h
@@ -552,6 +552,7 @@ hyperpoint gethyper(ld x, ld y);
 void resetview(); extern heptspin viewctr; extern cellwalker centerover;
 void drawthemap();
 void drawfullmap();
+extern function<void()> wrap_drawfullmap;
 bool displaystr(int x, int y, int shift, int size, const char *str, int color, int align);
 bool displaystr(int x, int y, int shift, int size, const string& str, int color, int align);