fix docs
diff --git a/doc/snippets/PartialLU_solve.cpp b/doc/snippets/PartialLU_solve.cpp
index 1244143..d9ccbe9 100644
--- a/doc/snippets/PartialLU_solve.cpp
+++ b/doc/snippets/PartialLU_solve.cpp
@@ -3,6 +3,6 @@
cout << "Here is the invertible matrix A:" << endl << A << endl;
cout << "Here is the matrix B:" << endl << B << endl;
MatrixXd X;
-if(A.lu().solve(B, &X))
+A.partialLu().solve(B, &X);
cout << "Here is the (unique) solution X to the equation AX=B:" << endl << X << endl;
cout << "Relative error: " << (A*X-B).norm() / B.norm() << endl;