diff --git a/make/lo.mk b/make/lo.mk
index dff2dfd9..deb5d946 100644
--- a/make/lo.mk
+++ b/make/lo.mk
@@ -3,30 +3,33 @@ include $(MODDIR)/make/rules.mk
 include $(MODDIR)/make/depend.mk
 
 # === change this >
-TOOLS_DIR ?= $(TOPDIR)/tools
+TOOLS_DIR                    ?= $(TOPDIR)/tools
 
-CPP_PREFIX ?= YLo
-SO_PREFIX = lo_
+CPP_PREFIX                   ?= YLo
+SO_PREFIX                     = lo_
 #SO_PREFIX ?= \
 #	$(shell sed '/const char \*YAbstractLoadableObject::_soPrefix/ !d; s/[^"]*"//; s/".*//' \
 #		$(YTOOLS_DIR)/YLoadableObject/YAbstractLoadableObject.cpp)
-LOADABLE_OBJ_HOOK ?= LOADABLE_OBJECT_HOOK
+LOADABLE_OBJ_HOOK            ?= LOADABLE_OBJECT_HOOK
 # === change this <
 
 .PRECIOUS: %.cpp
 
-LOADABLE_OBJS = $(patsubst $(CPP_PREFIX)%,%,$(basename $(notdir $(wildcard $(TOOLS_DIR)/$(CPP_PREFIX)*.h))))
+LOADABLE_OBJS                 = $(patsubst $(CPP_PREFIX)%,%,$(basename $(notdir $(wildcard $(TOOLS_DIR)/$(CPP_PREFIX)*.h))))
 ifneq ($(TARGET),mingw)
-LOADABLE_OBJ_LIBS = $(addprefix $(SO_PREFIX), $(addsuffix .so, $(LOADABLE_OBJS)))
+LOADABLE_OBJ_LIBS             = $(addprefix $(SO_PREFIX), $(addsuffix .so, $(LOADABLE_OBJS)))
 else
-LOADABLE_OBJ_LIBS = $(addprefix $(SO_PREFIX), $(addsuffix .dll, $(LOADABLE_OBJS)))
+LOADABLE_OBJ_LIBS             = $(addprefix $(SO_PREFIX), $(addsuffix .dll, $(LOADABLE_OBJS)))
 endif
-BUILD_LOADABLE_OBJ_LIBS = $(addprefix $(LIBDIR)/, $(LOADABLE_OBJ_LIBS))
+BUILD_LOADABLE_OBJ_LIBS       = $(addprefix $(LIBDIR)/, $(LOADABLE_OBJ_LIBS))
+INSTALLED_LOADABLE_OBJ_LIBS   = $(addprefix $(INSTALL_LIBDIR)/, $(LOADABLE_OBJ_LIBS))
 
 all: $(LOADABLE_OBJ_LIBS) $(BUILD_LOADABLE_OBJ_LIBS)
-clean:
+install: $(INSTALLED_LOADABLE_OBJ_LIBS)
+clean: clean.lo
+
+clean.lo:
 	rm -f *.o *.cpp *.so *.done *.dll
-install: $(ALL) installso
 
 $(SO_PREFIX)%.so $(SO_PREFIX)%.dll: %.o
 	$(CPP) -shared $^ $(LDFLAGS) -o $@