diff --git a/src/add-ons/kernel/file_systems/userlandfs/server/fuse/fuse_config.c b/src/add-ons/kernel/file_systems/userlandfs/server/fuse/fuse_config.c
index 99e6d62068..726adf742c 100644
--- a/src/add-ons/kernel/file_systems/userlandfs/server/fuse/fuse_config.c
+++ b/src/add-ons/kernel/file_systems/userlandfs/server/fuse/fuse_config.c
@@ -8,6 +8,7 @@
 
 #include "fuse_config.h"
 
+#include <string.h>
 
 enum {
 	KEY_KERN_FLAG,