diff --git a/src/test/qe_arith.cpp b/src/test/qe_arith.cpp
index bd8266dc2..40ecbd8c7 100644
--- a/src/test/qe_arith.cpp
+++ b/src/test/qe_arith.cpp
@@ -62,7 +62,7 @@ static void test(char const *ex) {
     app_ref_vector vars(m);
     expr_ref_vector lits(m);
     vars.push_back(m.mk_const(symbol("x"), a.mk_real()));
-    qe::flatten_and(fml, lits);
+    flatten_and(fml, lits);
 
     smt::context ctx(m, params);
     ctx.assert_expr(fml);
@@ -89,7 +89,7 @@ static void test2(char const *ex) {
     vars.push_back(m.mk_const(symbol("x"), a.mk_real()));
     vars.push_back(m.mk_const(symbol("y"), a.mk_real()));
     vars.push_back(m.mk_const(symbol("z"), a.mk_real()));
-    qe::flatten_and(fml, lits);
+    flatten_and(fml, lits);
 
     smt::context ctx(m, params);
     ctx.push();