diff --git a/src/examples/solver/test_iQR.cpp b/src/examples/solver/test_iQR.cpp
index d93cdcce888cd51176182ad3c3c4fad6eed15474..da96af297bc3f8592f125ce160f493a922568f94 100644
--- a/src/examples/solver/test_iQR.cpp
+++ b/src/examples/solver/test_iQR.cpp
@@ -26,7 +26,7 @@
 // eigen includes
 #include <eigen3/Eigen/OrderingMethods>
 #include <eigen3/Eigen/SparseQR>
-#include <Eigen/SPQRSupport>
+#include <eigen3/Eigen/SPQRSupport>
 
 // ccolamd
 #include "solver/ccolamd_ordering.h"