diff --git a/src/smt/smt_model_finder.cpp b/src/smt/smt_model_finder.cpp
index 54a763ac6..3f6c5046e 100644
--- a/src/smt/smt_model_finder.cpp
+++ b/src/smt/smt_model_finder.cpp
@@ -2288,7 +2288,10 @@ namespace smt {
                                 process_literal(to_app(curr)->get_arg(1), pol);
                                 break;
                             case OP_XOR:
-                                process_iff(to_app(curr));
+                                for (expr *arg : *to_app(curr)) {
+                                    visit_formula(arg, pol);
+                                    visit_formula(arg, neg(pol));
+                                }
                                 break;
                             case OP_OR:
                             case OP_AND: