diff --git a/src/tests/add-ons/kernel/busses/usb/uhci_decode.cpp b/src/tests/add-ons/kernel/busses/usb/uhci_decode.cpp
index 0af6a67772..534008a44f 100644
--- a/src/tests/add-ons/kernel/busses/usb/uhci_decode.cpp
+++ b/src/tests/add-ons/kernel/busses/usb/uhci_decode.cpp
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <string.h>
 #include <SupportDefs.h>
 
 struct uhci_td_control_status {