diff --git a/src/qe/qe_mbp.cpp b/src/qe/qe_mbp.cpp
index fbcff6f28b..752f9006f0 100644
--- a/src/qe/qe_mbp.cpp
+++ b/src/qe/qe_mbp.cpp
@@ -449,12 +449,12 @@ public:
             unsigned n = a->get_num_args();
             unsigned last = is_st ? n - 1 : n;
             for (unsigned i = 1; i < last; ++i)
-                for (app* v : arr_vars)
-                    if (occurs(v, a->get_arg(i)))
-                        return true;
+                if (any_of(arr_vars, [&](app* v) { return occurs(v, a->get_arg(i)); }))
+                    return true;
         }
         return false;
     }
+
     void operator()(bool force_elim, app_ref_vector& vars, model& model, expr_ref_vector& fmls, vector<mbp::def>* defs = nullptr) {
         //don't use mbp_qel on some theories where model evaluation is
         //incomplete This is not a limitation of qel. Fix this either by