diff --git a/src/tgbatest/ltl2tgba.cc b/src/tgbatest/ltl2tgba.cc
index d69c7960c..742d3403a 100644
--- a/src/tgbatest/ltl2tgba.cc
+++ b/src/tgbatest/ltl2tgba.cc
@@ -1167,10 +1167,11 @@ main(int argc, char** argv)
 	    }
 	}
 
+      const spot::tgba* monitor = 0;
       if (opt_monitor)
 	{
 	  tm.start("Monitor minimization");
-	  minimized = a = minimize_monitor(a);
+	  monitor = a = minimize_monitor(a);
 	  tm.stop("Monitor minimization");
 	  assume_sba = false; 	// All states are accepting, so double
 				// circles in the dot output are
@@ -1620,6 +1621,7 @@ main(int argc, char** argv)
       delete product_to_free;
       delete system;
       delete expl;
+      delete monitor;
       delete minimized;
       delete degeneralized;
       delete aut_scc;
diff --git a/wrap/python/spot.i b/wrap/python/spot.i
index 4fe6442f2..c2b9916d0 100644
--- a/wrap/python/spot.i
+++ b/wrap/python/spot.i
@@ -238,7 +238,7 @@ using namespace spot;
 
 %template(explicit_string_tgba)
   spot::tgba_explicit<state_explicit_string>;
-%template(explicit__number_tgba)
+%template(explicit_number_tgba)
   spot::tgba_explicit<state_explicit_number>;
 %template(explicit_formula_tgba)
   spot::tgba_explicit<state_explicit_formula>;
@@ -253,6 +253,30 @@ using namespace spot;
   spot::explicit_conf<tgba_explicit<state_explicit_formula>,
 		      state_explicit_formula>;
 
+%template(explicit_graph__string_sba)
+  spot::explicit_graph<state_explicit_string, sba>;
+%template(explicit_graph__number_sba)
+  spot::explicit_graph<state_explicit_number, sba>;
+%template(explicit_graph__formula_sba)
+  spot::explicit_graph<state_explicit_formula, sba>;
+
+%template(explicit_string_sba)
+  spot::sba_explicit<state_explicit_string>;
+%template(explicit_number_sba)
+  spot::sba_explicit<state_explicit_number>;
+%template(explicit_formula_sba)
+  spot::sba_explicit<state_explicit_formula>;
+
+%template(explicit_string__sba)
+  spot::explicit_conf<sba_explicit<state_explicit_string>,
+                      state_explicit_string>;
+%template(explicit_number__sba)
+  spot::explicit_conf<sba_explicit<state_explicit_number>,
+		      state_explicit_number>;
+%template(explicit_formula__sba)
+  spot::explicit_conf<sba_explicit<state_explicit_formula>,
+		      state_explicit_formula>;
+
 %include "tgbaalgos/degen.hh"
 %include "tgbaalgos/dottydec.hh"
 %include "tgbaalgos/dotty.hh"