diff --git a/test/test54.c b/test/test54.c
index 5caa99472..7e4776e7e 100644
--- a/test/test54.c
+++ b/test/test54.c
@@ -20,7 +20,7 @@ static void do_test(void)
 	size_t size;
 	ssize_t nwritten;
 	ssize_t nread;
-	char *filename = "pwrite_test_XXXXXXX";
+	char filename[] = "pwrite_test_XXXXXXX";
 	int i;
 
 	subtest = 1;
diff --git a/test/test55.c b/test/test55.c
index f6974da8d..a00b7f945 100644
--- a/test/test55.c
+++ b/test/test55.c
@@ -13,7 +13,7 @@ int max_error = 3;
 
 
 int subtest;
-char *filename = "statvfs_test_XXXXXX";
+char filename[] = "statvfs_test_XXXXXX";
 
 static void create_file(void)
 {