diff --git a/source/blender/blenkernel/BKE_bad_level_calls.h b/source/blender/blenkernel/BKE_bad_level_calls.h
index 4ae25a44b94..8c2a6df7d65 100644
--- a/source/blender/blenkernel/BKE_bad_level_calls.h
+++ b/source/blender/blenkernel/BKE_bad_level_calls.h
@@ -148,7 +148,11 @@ void bglEnd(void);
 
 struct DispListMesh;
 struct Object;
+
+/* booleanops.c */
 struct DispListMesh *NewBooleanMeshDLM(struct Object *ob, struct Object *ob_select, int int_op_type);
+struct DerivedMesh *NewBooleanDerivedMesh(struct Object *ob,
+                                struct Object *ob_select, int int_op_type);
 
 #endif
 
diff --git a/source/blender/blenkernel/bad_level_call_stubs/stubs.c b/source/blender/blenkernel/bad_level_call_stubs/stubs.c
index 5f4cdce5090..853d3ea7f29 100644
--- a/source/blender/blenkernel/bad_level_call_stubs/stubs.c
+++ b/source/blender/blenkernel/bad_level_call_stubs/stubs.c
@@ -220,7 +220,10 @@ void bglVertex3fv(float *vec) {}
 void bglVertex3f(float x, float y, float z) {}
 void bglEnd(void) {}
 
+/* booleanops.c */
 struct DispListMesh *NewBooleanMeshDLM(struct Object *ob, struct Object *ob_select, int int_op_type) { return 0; }
+struct DerivedMesh *NewBooleanDerivedMesh(struct Object *ob,
+                                struct Object *ob_select, int int_op_type) {}
 
 // bobj read/write debug messages
 void elbeemDebugOut(char *msg) {}