diff --git a/gtsam_unstable/dynamics/DynamicsPriors.h b/gtsam_unstable/dynamics/DynamicsPriors.h
index 2d0f9e6a6..ccf7063dc 100644
--- a/gtsam_unstable/dynamics/DynamicsPriors.h
+++ b/gtsam_unstable/dynamics/DynamicsPriors.h
@@ -9,7 +9,7 @@
 
 #pragma once
 
-#include <gtsam/slam/PartialPriorFactor.h>
+#include <gtsam_unstable/slam/PartialPriorFactor.h>
 
 #include <gtsam_unstable/dynamics/PoseRTV.h>
 
diff --git a/gtsam_unstable/dynamics/tests/testIMUSystem.cpp b/gtsam_unstable/dynamics/tests/testIMUSystem.cpp
index 86301f417..01c7925b3 100644
--- a/gtsam_unstable/dynamics/tests/testIMUSystem.cpp
+++ b/gtsam_unstable/dynamics/tests/testIMUSystem.cpp
@@ -10,7 +10,7 @@
 #include <gtsam/slam/BetweenFactor.h>
 #include <gtsam/slam/PriorFactor.h>
 #include <gtsam/slam/RangeFactor.h>
-#include <gtsam/slam/PartialPriorFactor.h>
+#include <gtsam_unstable/slam/PartialPriorFactor.h>
 #include <gtsam/nonlinear/NonlinearEquality.h>
 #include <gtsam/nonlinear/LevenbergMarquardtOptimizer.h>
 #include <gtsam/nonlinear/NonlinearFactorGraph.h>
diff --git a/gtsam/slam/PartialPriorFactor.h b/gtsam_unstable/slam/PartialPriorFactor.h
similarity index 100%
rename from gtsam/slam/PartialPriorFactor.h
rename to gtsam_unstable/slam/PartialPriorFactor.h
diff --git a/gtsam_unstable/slam/PoseRotationPrior.h b/gtsam_unstable/slam/PoseRotationPrior.h
index c4a7a7de7..d6efc0cc4 100644
--- a/gtsam_unstable/slam/PoseRotationPrior.h
+++ b/gtsam_unstable/slam/PoseRotationPrior.h
@@ -9,7 +9,7 @@
 
 #pragma once
 
-#include <gtsam/slam/PartialPriorFactor.h>
+#include <gtsam_unstable/slam/PartialPriorFactor.h>
 #include <gtsam/geometry/concepts.h>
 
 namespace gtsam {