diff --git a/Eigen/src/LU/FullPivLU.h b/Eigen/src/LU/FullPivLU.h
index 26bc71447..e38470463 100644
--- a/Eigen/src/LU/FullPivLU.h
+++ b/Eigen/src/LU/FullPivLU.h
@@ -688,7 +688,7 @@ struct solve_retval<FullPivLU<_MatrixType>, Rhs>
      */
 
     const Index rows = dec().rows(), cols = dec().cols(),
-              nonzero_pivots = dec().nonzeroPivots();
+              nonzero_pivots = dec().rank();
     eigen_assert(rhs().rows() == rows);
     const Index smalldim = (std::min)(rows, cols);