diff --git a/app/src/sys/unix/command.c b/app/src/sys/unix/command.c
index a60e21bc..64a54e71 100644
--- a/app/src/sys/unix/command.c
+++ b/app/src/sys/unix/command.c
@@ -14,6 +14,7 @@
 #include <limits.h>
 #include <signal.h>
 #include <stdlib.h>
+#include <string.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/stat.h>