diff --git a/ext/rbconfig/sizeof/depend b/ext/rbconfig/sizeof/depend
index 5fa99ad13d..de26a464a5 100644
--- a/ext/rbconfig/sizeof/depend
+++ b/ext/rbconfig/sizeof/depend
@@ -1,10 +1,10 @@
 # sources
 
-{$(VPATH)}limits.c: $(top_srcdir)/tool/generic_erb.rb $(top_srcdir)/template/limits.c.tmpl
+limits.c: $(top_srcdir)/tool/generic_erb.rb $(top_srcdir)/template/limits.c.tmpl
 	$(Q) $(RUBY) $(top_srcdir)/tool/generic_erb.rb --output=$@ \
 		$(top_srcdir)/template/limits.c.tmpl \
 
-{$(VPATH)}sizes.c: $(top_srcdir)/tool/generic_erb.rb \
+sizes.c: $(top_srcdir)/tool/generic_erb.rb \
 		   $(top_srcdir)/template/sizes.c.tmpl \
 		   $(top_srcdir)/configure.in \
 		   $(top_srcdir)/ext/rbconfig/sizeof/extconf.rb