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Diffstat (limited to 'src/cython/include/Strong_witness_complex_interface.h')
-rw-r--r--src/cython/include/Strong_witness_complex_interface.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cython/include/Strong_witness_complex_interface.h b/src/cython/include/Strong_witness_complex_interface.h
index 5081ec2d..70e78a2a 100644
--- a/src/cython/include/Strong_witness_complex_interface.h
+++ b/src/cython/include/Strong_witness_complex_interface.h
@@ -42,7 +42,7 @@ class Strong_witness_complex_interface {
using Nearest_landmark_table = std::vector<Nearest_landmark_range>;
public:
- Strong_witness_complex_interface(Nearest_landmark_table& nlt) {
+ Strong_witness_complex_interface(const Nearest_landmark_table& nlt) {
witness_complex_ = new Strong_witness_complex<Nearest_landmark_table>(nlt);
}