diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 317200ba79..9ca5e69ef1 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -43,7 +43,7 @@ else
   $null = open('test.log', 'w')
 end
 
-LINK = "#{CONFIG['CC']} -o conftest -I#{$hdrdir} #{CFLAGS} -I#{CONFIG['includedir']} %s #{CONFIG['LDFLAGS']} %s conftest.c %s %s #{CONFIG['LIBS']}"
+LINK = "#{CONFIG['CC']} -o conftest -I#{$hdrdir} #{CFLAGS} -I#{CONFIG['includedir']} %s %s #{CONFIG['LDFLAGS']} %s conftest.c %s %s #{CONFIG['LIBS']}"
 CPP = "#{CONFIG['CPP']} -E %s -I#{$hdrdir} #{CFLAGS} -I#{CONFIG['includedir']} %s %s conftest.c"
 
 def rm_f(*files)