diff --git a/source/blender/blenkernel/BKE_lattice.h b/source/blender/blenkernel/BKE_lattice.h
index b722b7da6a0..c2ac5e98f76 100644
--- a/source/blender/blenkernel/BKE_lattice.h
+++ b/source/blender/blenkernel/BKE_lattice.h
@@ -41,7 +41,6 @@ struct Main;
 struct Mesh;
 struct Object;
 struct Scene;
-struct DerivedMesh;
 struct BPoint;
 struct MDeformVert;
 struct Depsgraph;
diff --git a/source/blender/blenkernel/BKE_mesh.h b/source/blender/blenkernel/BKE_mesh.h
index 85ce4eb6cae..76205da9565 100644
--- a/source/blender/blenkernel/BKE_mesh.h
+++ b/source/blender/blenkernel/BKE_mesh.h
@@ -64,7 +64,6 @@ struct MDeformVert;
 struct MDisps;
 struct Object;
 struct CustomData;
-struct DerivedMesh;
 struct Scene;
 struct MLoopUV;
 struct ReportList;
diff --git a/source/blender/blenkernel/BKE_shrinkwrap.h b/source/blender/blenkernel/BKE_shrinkwrap.h
index 8a809b606f1..c92b0fd1272 100644
--- a/source/blender/blenkernel/BKE_shrinkwrap.h
+++ b/source/blender/blenkernel/BKE_shrinkwrap.h
@@ -47,7 +47,6 @@
  */
 
 struct Object;
-struct DerivedMesh;
 struct Mesh;
 struct MVert;
 struct MDeformVert;