diff --git a/src/isdb/RDC.cpp b/src/isdb/RDC.cpp
index 735a4a675ebea4f63ec23619fba5bd8f655946c6..3c0f31c0897cd62b2dc525df5203574c317805e4 100644
--- a/src/isdb/RDC.cpp
+++ b/src/isdb/RDC.cpp
@@ -407,6 +407,7 @@ void RDC::do_svd()
   }
   gsl_matrix_free(coef_mat);
   gsl_matrix_free(A);
+  gsl_matrix_free(V);
   gsl_vector_free(rdc_vec);
   gsl_vector_free(bc);
   gsl_vector_free(Stmp);