--- common.mk.orig	2024-12-25 16:43:20.000000000 +0900
+++ common.mk
@@ -314,7 +314,7 @@
 BOOTSTRAPRUBY_COMMAND = $(BOOTSTRAPRUBY) $(BOOTSTRAPRUBY_OPT)
 TESTSDIR      = $(srcdir)/test
 TOOL_TESTSDIR = $(tooldir)/test
-TEST_EXCLUDES = --excludes-dir=$(TESTSDIR)/.excludes --name=!/memory_leak/
+TEST_EXCLUDES = --excludes-dir=$(TESTSDIR)/.excludes --name="!/memory_leak/"
 TESTWORKDIR   = testwork
 TESTOPTS      = $(RUBY_TESTOPTS)