diff --git a/components/nif/physics.cpp b/components/nif/physics.cpp
index 9636ec22da..2d1abeff58 100644
--- a/components/nif/physics.cpp
+++ b/components/nif/physics.cpp
@@ -187,6 +187,21 @@ namespace Nif
             nif->skip(12); // Unused
     }
 
+    void bhkConstraintCInfo::read(NIFStream* nif)
+    {
+        nif->get<unsigned int>(); // Number of entities, unused
+        mEntities.resize(2); // Hardcoded
+        for (auto& entity : mEntities)
+            entity.read(nif);
+
+        mPriority = static_cast<ConstraintPriority>(nif->get<uint32_t>());
+    }
+
+    void bhkConstraintCInfo::post(Reader& nif)
+    {
+        postRecordList(nif, mEntities);
+    }
+
     /// Record types
 
     void bhkCollisionObject::read(NIFStream* nif)
@@ -448,4 +463,15 @@ namespace Nif
         nif->readArray(mat);
         mTransform.set(mat.data());
     }
+
+    void bhkConstraint::read(NIFStream* nif)
+    {
+        mInfo.read(nif);
+    }
+
+    void bhkConstraint::post(Reader& nif)
+    {
+        mInfo.post(nif);
+    }
+
 } // Namespace
diff --git a/components/nif/physics.hpp b/components/nif/physics.hpp
index 3124e05692..bf1ca4c011 100644
--- a/components/nif/physics.hpp
+++ b/components/nif/physics.hpp
@@ -210,6 +210,21 @@ namespace Nif
         void read(NIFStream* nif);
     };
 
+    enum class ConstraintPriority : uint32_t
+    {
+        Priority_Invalid = 0,
+        Priority_PhysicsTime = 1,
+        Priority_TimeOfImpact = 3
+    };
+
+    struct bhkConstraintCInfo
+    {
+        bhkEntityList mEntities;
+        ConstraintPriority mPriority;
+        void read(NIFStream* nif);
+        void post(Reader& nif);
+    };
+
     /// Record types
 
     // Abstract Bethesda Havok object
@@ -431,5 +446,14 @@ namespace Nif
         osg::Matrixf mTransform;
         void read(NIFStream* nif) override;
     };
+
+    // Abstract constraint
+    struct bhkConstraint : public bhkSerializable
+    {
+        bhkConstraintCInfo mInfo;
+        void read(NIFStream* nif) override;
+        void post(Reader& nif) override;
+    };
+
 } // Namespace
 #endif
diff --git a/components/nif/recordptr.hpp b/components/nif/recordptr.hpp
index 7025063213..3c22502145 100644
--- a/components/nif/recordptr.hpp
+++ b/components/nif/recordptr.hpp
@@ -137,6 +137,7 @@ namespace Nif
     struct bhkWorldObject;
     struct bhkShape;
     struct bhkSerializable;
+    struct bhkEntity;
     struct hkPackedNiTriStripsData;
     struct NiAccumulator;
     struct NiInterpolator;
@@ -194,6 +195,7 @@ namespace Nif
     using NiTriStripsDataList = RecordListT<NiTriStripsData>;
     using bhkShapeList = RecordListT<bhkShape>;
     using bhkSerializableList = RecordListT<bhkSerializable>;
+    using bhkEntityList = RecordListT<bhkEntity>;
     using NiControllerSequenceList = RecordListT<NiControllerSequence>;
 
 } // Namespace