diff --git a/src/smt/seq_axioms.h b/src/smt/seq_axioms.h
index 525f6b3db..477874bc0 100644
--- a/src/smt/seq_axioms.h
+++ b/src/smt/seq_axioms.h
@@ -92,6 +92,7 @@ namespace smt {
         void add_unit_axiom(expr* n) { m_ax.unit_axiom(n); }
         void add_length_axiom(expr* n) { m_ax.length_axiom(n); }
         void unroll_not_contains(expr* n) { m_ax.unroll_not_contains(n); }
+        void not_contains_axiom(expr* n) { m_ax.not_contains_axiom(n); }
 
         literal is_digit(expr* ch) { return mk_literal(m_ax.is_digit(ch)); }
         expr_ref add_length_limit(expr* s, unsigned k) { return m_ax.length_limit(s, k); }
diff --git a/src/smt/theory_nseq.cpp b/src/smt/theory_nseq.cpp
index c73eec720..d09842ab7 100644
--- a/src/smt/theory_nseq.cpp
+++ b/src/smt/theory_nseq.cpp
@@ -246,7 +246,7 @@ namespace smt {
             if (is_true)
                 m_axioms.contains_true_axiom(e);
             else
-                m_axioms.unroll_not_contains(e);
+                m_axioms.not_contains_axiom(e);
         }
         else if (m_seq.str.is_lt(e) || m_seq.str.is_le(e)) {
             // axioms added via relevant_eh → dequeue_axiom