diff --git a/src/ast/array_decl_plugin.cpp b/src/ast/array_decl_plugin.cpp
index 300f57e57..66cf0e742 100644
--- a/src/ast/array_decl_plugin.cpp
+++ b/src/ast/array_decl_plugin.cpp
@@ -259,8 +259,8 @@ func_decl* array_decl_plugin::mk_select(unsigned arity, sort * const * domain) {
             std::stringstream strm;
             strm << "domain sort " << sort_ref(domain[i+1], *m_manager) << " and parameter ";
             strm << parameter_pp(parameters[i], *m_manager) << " do not match";
-            UNREACHABLE();
             m_manager->raise_exception(strm.str());
+            UNREACHABLE();
             return nullptr;
         }
         new_domain.push_back(to_sort(parameters[i].get_ast()));