diff --git a/ChangeLog b/ChangeLog
index fdac357873..e5dbbeac89 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon Dec 15 15:02:24 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (EXTMK_ARGS): needs MINIRUBY for cross-compile.
+	  [ruby-core:20131]
+
 Mon Dec 15 14:39:37 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* vm_eval.c (vm_call0): NODE_ZSUPER supported.  [ruby-core:20480]
diff --git a/common.mk b/common.mk
index 315672e5e1..56f21e3c74 100644
--- a/common.mk
+++ b/common.mk
@@ -100,7 +100,8 @@ SCRIPT_ARGS   =	--dest-dir="$(DESTDIR)" \
 		--extout="$(EXTOUT)" \
 		--mflags="$(MFLAGS)" \
 		--make-flags="$(MAKEFLAGS)"
-EXTMK_ARGS    =	$(SCRIPT_ARGS) --extension $(EXTS) --extstatic $(EXTSTATIC) --
+EXTMK_ARGS    =	$(SCRIPT_ARGS) --extension $(EXTS) --extstatic $(EXTSTATIC) \
+		--make-flags="MINIRUBY=\"$(MINIRUBY)\"" --
 INSTRUBY_ARGS =	$(SCRIPT_ARGS) \
 		--data-mode=$(INSTALL_DATA_MODE) \
 		--prog-mode=$(INSTALL_PROG_MODE) \