diff --git a/ChangeLog b/ChangeLog
index ac7b852142..6711dcec97 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Dec 25 16:34:58 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/dl/depend: add dependencies. [ruby-dev:32760]
+
 Tue Dec 25 16:26:48 2007  Koichi Sasada  <ko1@atdot.net>
 
 	* include/ruby/ruby.h, thread.c: rename is_ruby_native_thread() to
diff --git a/ext/dl/depend b/ext/dl/depend
index 3f05a2f802..fe89a9fae3 100644
--- a/ext/dl/depend
+++ b/ext/dl/depend
@@ -1,10 +1,10 @@
-cfunc.o: cfunc.c dl.h
+cfunc.o: cfunc.c dl.h $(hdrdir)/ruby.h
 
-cptr.o: cptr.c dl.h
+cptr.o: cptr.c dl.h $(hdrdir)/ruby.h $(hdrdir)/io.h
 
-handle.o: handle.c dl.h
+handle.o: handle.c dl.h $(hdrdir)/ruby.h
 
-dl.o: dl.c dl.h callback.h
+dl.o: dl.c dl.h callback.h $(hdrdir)/ruby.h $(hdrdir)/io.h
 
 callback.h: $(srcdir)/mkcallback.rb dl.h
 	@echo "generating callback.h"