diff --git a/make/lo.mk b/make/lo.mk
index 9860e493..e4ff0500 100644
--- a/make/lo.mk
+++ b/make/lo.mk
@@ -10,7 +10,8 @@ LOADABLE_OBJ_HOOK            ?= LOADABLE_OBJECT_HOOK
 include $(MODDIR)/make/defs.mk
 
 .PRECIOUS: %.cpp %.o
-LOADABLE_OBJS_BASE            = $(patsubst %$(CPP_SUFFIX),%,$(patsubst $(CPP_PREFIX)%,%,$(basename $(notdir $(wildcard $(TOOLS_INCLUDE_DIR)/$(CPP_PREFIX)*$(CPP_SUFFIX).h)))))
+LOADABLE_OBJS_HEADER         ?= $(wildcard $(TOOLS_INCLUDE_DIR)/$(CPP_PREFIX)*$(CPP_SUFFIX).h)
+LOADABLE_OBJS_BASE           ?= $(patsubst %$(CPP_SUFFIX),%,$(patsubst $(CPP_PREFIX)%,%,$(basename $(notdir $(LOADABLE_OBJS_HEADER)))))
 LOADABLE_OBJS                 = $(filter-out $(LOADABLE_OBJ_IGNORE),$(LOADABLE_OBJS_BASE))
 LOADABLE_OBJ_CPP              = $(patsubst %,%.cpp,$(LOADABLE_OBJS))
 LOADABLE_OBJS_O               = $(patsubst %,%.o,$(LOADABLE_OBJS))
@@ -37,7 +38,7 @@ install: $(INSTALLED_LOADABLE_OBJ_LIBS)
 clean: clean.lo
 
 clean.generated:
-	rm -f $(patsubst $(CPP_PREFIX)%$(CPP_SUFFIX),%,$(notdir $(wildcard $(TOOLS_DIR)/$(CPP_PREFIX)*$(CPP_SUFFIX).cpp)))
+	rm -f $(patsubst $(CPP_PREFIX)%$(CPP_SUFFIX),%,$(notdir $(patsubst %.h,%.cpp,$(LOADABLE_OBJS_HEADER))))
 
 clean.lo: profclean clean.generated
 	rm -f $(wildcard *.o *.so *.done *.dll $(OTHER_LIB))