diff --git a/libretro-common/vfs/vfs_implementation.c b/libretro-common/vfs/vfs_implementation.c
index d5c4654bb0..6895b1b7b8 100644
--- a/libretro-common/vfs/vfs_implementation.c
+++ b/libretro-common/vfs/vfs_implementation.c
@@ -26,6 +26,8 @@
 #include <errno.h>
 #include <sys/types.h>
 
+#include <string/stdstring.h> /* string_is_empty */
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif