diff --git a/src/misc/basename.c b/src/misc/basename.c
index 016b397..33159fc 100644
--- a/src/misc/basename.c
+++ b/src/misc/basename.c
@@ -1,8 +1,8 @@
-#define _GNU_SOURCE
-#include "test.h"
+#define _POSIX_C_SOURCE 200809L
 #include <stdlib.h>
 #include <string.h>
 #include <libgen.h>
+#include "test.h"
 
 static void t(char *p, char *b) {
 	char *tmp = strdup(p);
diff --git a/src/misc/dirname.c b/src/misc/dirname.c
index d77226a..50538b6 100644
--- a/src/misc/dirname.c
+++ b/src/misc/dirname.c
@@ -1,8 +1,8 @@
-#define _GNU_SOURCE
-#include "test.h"
+#define _POSIX_C_SOURCE 200809L
 #include <stdlib.h>
 #include <string.h>
 #include <libgen.h>
+#include "test.h"
 
 static void t(char *p, char *b) {
 	char *tmp = strdup(p);