diff --git a/src/test/lp/gomory_test.h b/src/test/lp/gomory_test.h
index fdf62d992..f7dc52b05 100644
--- a/src/test/lp/gomory_test.h
+++ b/src/test/lp/gomory_test.h
@@ -187,7 +187,7 @@ struct gomory_test {
     void print_term(lar_term & t, std::ostream & out) {
         vector<std::pair<mpq, unsigned>>  row;
         for (auto p : t)
-            row.push_back(std::make_pair(p.coeff(), p.var()));
+            row.push_back(std::make_pair(p.coeff(), p.var().index()));
         print_row(out, row);
     }
     
diff --git a/src/test/lp/lp.cpp b/src/test/lp/lp.cpp
index 5ac0121a1..1d2bef52d 100644
--- a/src/test/lp/lp.cpp
+++ b/src/test/lp/lp.cpp
@@ -44,7 +44,7 @@
 #include "math/lp/numeric_pair.h"
 #include "math/lp/binary_heap_upair_queue.h"
 #include "math/lp/stacked_value.h"
-#include "math/lp/int_set.h"
+#include "math/lp/u_set.h"
 #include "util/stopwatch.h"
 #include <cstdlib>
 #include "test/lp/gomory_test.h"
@@ -3219,19 +3219,16 @@ void test_bound_propagation() {
 }
 
 void test_int_set() {
-    int_set s(4);
+    u_set s(4);
     s.insert(2);
-    s.print(std::cout);
     s.insert(1);
     s.insert(2);
-    s.print(std::cout);
     lp_assert(s.contains(2));
     lp_assert(s.size() == 2);
     s.erase(2);
     lp_assert(s.size() == 1);
     s.erase(2);
     lp_assert(s.size() == 1);
-    s.print(std::cout);
     s.insert(3);
     s.insert(2);
     s.clear();