diff --git a/graph.cpp b/graph.cpp
index 3abc990f..386c9795 100644
--- a/graph.cpp
+++ b/graph.cpp
@@ -3412,7 +3412,7 @@ color_t magma_color(int id) {
   else return winf[waMagma].color;
   }
 
-void setcolors(cell *c, color_t& wcol, color_t& fcol) {
+EX void setcolors(cell *c, color_t& wcol, color_t& fcol) {
 
   wcol = fcol = winf[c->wall].color;
 
diff --git a/reg3.cpp b/reg3.cpp
index 672670de..e211feb0 100644
--- a/reg3.cpp
+++ b/reg3.cpp
@@ -36,7 +36,8 @@ EX namespace reg3 {
     return bucketer(h[0]) + 1000 * bucketer(h[1]) + 1000000 * bucketer(h[2]);
     }
   
-  int loop, face;
+  EX int loop;
+  EX int face;
 
   EX vector<hyperpoint> cellshape;
   vector<hyperpoint> vertices_only;