diff --git a/ext/phar/Makefile.frag b/ext/phar/Makefile.frag
index e58795deea81c..8047eb5af4109 100644
--- a/ext/phar/Makefile.frag
+++ b/ext/phar/Makefile.frag
@@ -1,5 +1,5 @@
 $(srcdir)/phar_path_check.c: $(srcdir)/phar_path_check.re
-	@(cd $(top_srcdir); $(RE2C) --no-generation-date -b -o ext/phar/phar_path_check.c ext/phar/phar_path_check.re)
+	@(cd $(top_srcdir); $(RE2C) --no-generation-date -b -o $(srcdir)/phar_path_check.c $(srcdir)/phar_path_check.re)
 
 pharcmd: $(builddir)/phar.php $(builddir)/phar.phar