diff --git a/gtsam_unstable/linear/LPInitSolver.h b/gtsam_unstable/linear/LPInitSolver.h
index 5297f3f95..75a437d21 100644
--- a/gtsam_unstable/linear/LPInitSolver.h
+++ b/gtsam_unstable/linear/LPInitSolver.h
@@ -20,7 +20,6 @@
 #pragma once
 
 #include <gtsam_unstable/linear/LP.h>
-#include <gtsam_unstable/linear/InfeasibleOrUnboundedProblem.h>
 #include <gtsam/linear/GaussianFactorGraph.h>
 #include <CppUnitLite/Test.h>