diff --git a/src/smt/theory_array_base.cpp b/src/smt/theory_array_base.cpp
index 6325a2a99..b2c17b4e0 100644
--- a/src/smt/theory_array_base.cpp
+++ b/src/smt/theory_array_base.cpp
@@ -433,14 +433,16 @@ namespace smt {
 	    enode * n = get_enode(i);
             if (ctx.is_relevant(n)) {
 	        enode * r = n->get_root();
-		if (!r->is_marked() && is_array_sort(r) && ctx.is_shared(r)) {
-		  TRACE("array_shared", tout << "new shared var: #" << r->get_owner_id() << "\n";);
-		  theory_var r_th_var = r->get_th_var(get_id());
-		  SASSERT(r_th_var != null_theory_var);
-		  result.push_back(r_th_var);
+		if (!r->is_marked()){
+		    if(is_array_sort(r) && ctx.is_shared(r)) {
+		      TRACE("array_shared", tout << "new shared var: #" << r->get_owner_id() << "\n";);
+		      theory_var r_th_var = r->get_th_var(get_id());
+		      SASSERT(r_th_var != null_theory_var);
+		      result.push_back(r_th_var);
+		    }
+		    r->set_mark();
+		    to_unmark.push_back(r);
 		}
-		r->set_mark();
-		to_unmark.push_back(r);
             }
         }
         unmark_enodes(to_unmark.size(), to_unmark.c_ptr());