diff --git a/ChangeLog b/ChangeLog
index 358ee01400..10f60bd896 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun Mar  1 19:10:59 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (.y.c): removed extra backslash.  [ruby-core:22602]
+
 Sun Mar  1 19:02:03 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/dl/cfunc.c (rb_dlcfunc_call): fix for stdcall and missing
diff --git a/common.mk b/common.mk
index 9b732c4a10..3391bca878 100644
--- a/common.mk
+++ b/common.mk
@@ -435,7 +435,7 @@ PHONY:
 parse.h {$(VPATH)}parse.h: {$(VPATH)}parse.c
 
 {$(srcdir)}.y.c:
-	$(YACC) -d $(YFLAGS) -o y.tab.c $(<:\\=/)
+	$(YACC) -d $(YFLAGS) -o y.tab.c $(<:\=/)
 	sed -f $(srcdir)/tool/ytab.sed -e "/^#/s!y\.tab\.c!$@!" y.tab.c > $@.new
 	@$(MV) $@.new $@
 	sed -e "/^#line.*y\.tab\.h/d;/^#line.*parse\.y/d" y.tab.h > $(@:.c=.h).new