diff --git a/src/test/regress/pg_regress.c b/src/test/regress/pg_regress.c
index 38b2b1e8e1..ed0e3c780d 100644
--- a/src/test/regress/pg_regress.c
+++ b/src/test/regress/pg_regress.c
@@ -465,8 +465,6 @@ convert_sourcefiles_in(const char *source_subdir, const char *dest_dir, const ch
 {
 	char		testtablespace[MAXPGPATH];
 	char		indir[MAXPGPATH];
-	struct stat st;
-	int			ret;
 	char	  **name;
 	char	  **names;
 	int			count = 0;
@@ -474,8 +472,7 @@ convert_sourcefiles_in(const char *source_subdir, const char *dest_dir, const ch
 	snprintf(indir, MAXPGPATH, "%s/%s", inputdir, source_subdir);
 
 	/* Check that indir actually exists and is a directory */
-	ret = stat(indir, &st);
-	if (ret != 0 || !S_ISDIR(st.st_mode))
+	if (!directory_exists(indir))
 	{
 		/*
 		 * No warning, to avoid noise in tests that do not have these