-MIGRATION_TEST_TARGETS := $(addprefix test_migration_,$(shell perl -ne 'print "$1 " if /^\s*name\s*=>\s*["'\'']([^\s"'\'']+)["'\'']\s*,\s*$/; END { print "\n" }' run_qemu_migrate_tests.pl))
+MIGRATION_TEST_TARGETS := $(addprefix test_migration_,$(shell perl -ne 'print "$$1 " if /^\s*name\s*=>\s*["'\'']([^\s"'\'']+)["'\'']\s*,\s*$$/; END { print "\n" }' run_qemu_migrate_tests.pl))