diff --git a/ChangeLog b/ChangeLog
index 6d77f49d93..bda5cdf9c0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Wed Oct 22 21:31:56 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* common.mk (prelude.c): add dependency to LIB_SRCS because
+	  enc/prelude.rb requires lib/unicode_normalize.rb, and it's also
+	  requires lib/unicode_normalize/tables.rb (=LIB_SRCS).
+
 Wed Oct 22 21:09:51 2014  Yuki Yugui Sonoda  <yugui@yugui.jp>
 
 	* configure.in (nacl_cv_cpu_nick): fix typo in PNaCl.
diff --git a/common.mk b/common.mk
index 528c7ded66..55db39bc88 100644
--- a/common.mk
+++ b/common.mk
@@ -971,7 +971,7 @@ $(MINIPRELUDE_C): $(srcdir)/tool/compile_prelude.rb $(srcdir)/prelude.rb
 prelude.c: $(srcdir)/tool/compile_prelude.rb $(RBCONFIG) \
 	   $(srcdir)/lib/rubygems/defaults.rb \
 	   $(srcdir)/lib/rubygems/core_ext/kernel_gem.rb \
-	   $(PRELUDE_SCRIPTS) $(PREP)
+	   $(PRELUDE_SCRIPTS) $(PREP) $(LIB_SRCS)
 	$(ECHO) generating $@
 	$(Q) $(COMPILE_PRELUDE) $(PRELUDE_SCRIPTS) $@