diff --git a/posix/Makefile b/posix/Makefile
index 0351da4d70..3b72aa2617 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -69,7 +69,7 @@ tests		:= tstgetopt testfnm runtests runptests	     \
 		   tst-preadwrite tst-preadwrite64 test-vfork regexbug1 \
 		   tst-getlogin tst-mmap tst-getaddrinfo tst-truncate \
 		   tst-truncate64 tst-fork tst-fnmatch tst-regexloc tst-dir \
-		   tst-chmod
+		   tst-chmod bug-regex1
 ifeq (yes,$(build-shared))
 test-srcs	:= globtest
 tests           += wordexp-test tst-exec tst-spawn
@@ -119,6 +119,7 @@ tst-chmod-ARGS = `pwd`
 
 tst-fnmatch-ENV = LOCPATH=$(common-objpfx)localedata
 tst-regexloc-ENV = LOCPATH=$(common-objpfx)localedata
+bug-regex1-ENV = LOCPATH=$(common-objpfx)localedata
 
 testcases.h: TESTS TESTS2C.sed
 	sed -f TESTS2C.sed < $< > $@T