diff --git a/kernel/subdir.mak b/kernel/subdir.mak
index 4b33387..5e9b8d2 100644
--- a/kernel/subdir.mak
+++ b/kernel/subdir.mak
@@ -4,6 +4,7 @@ COBJS           := $(patsubst %.c,%.o,$(wildcard *.c))
 CXXOBJS         := $(patsubst %.cc,%.o,$(wildcard *.cc))
 CDEPS           := $(COBJS:.o=.dep)
 CXXDEPS         := $(CXXOBJS:.o=.dep)
+DEPS			:= $(CDEPS) $(CXXDEPS)
 OUTPUT_FILE     := $(SUBDIR)_all.o
 
 ifdef SUBDIRS
@@ -35,6 +36,10 @@ endif
 	@set -e; rm -f $@; \
 	  $(CC) -MM $(CPPFLAGS) $< | sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' > $@
 
+%.dep: %.cc
+	@set -e; rm -f $@; \
+	  $(CXX) -MM $(CPPFLAGS) $< | sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' > $@
+
 clean: $(SUBDIRS_clean)
 	-rm -f *.o *.dep *~