diff --git a/src/systemcmds/tune_control/tune_control.cpp b/src/systemcmds/tune_control/tune_control.cpp
index 6057850a1e..55712b7b99 100644
--- a/src/systemcmds/tune_control/tune_control.cpp
+++ b/src/systemcmds/tune_control/tune_control.cpp
@@ -41,6 +41,7 @@
 #include <px4_getopt.h>
 #include <px4_log.h>
 
+#include <string.h>
 #include <unistd.h>
 
 #include <lib/tunes/tunes.h>