diff --git a/src/mm-modem-helpers-mbim.c b/src/mm-modem-helpers-mbim.c
index 8dfc2420..e418969f 100644
--- a/src/mm-modem-helpers-mbim.c
+++ b/src/mm-modem-helpers-mbim.c
@@ -19,6 +19,8 @@
 #include "mm-errors-types.h"
 #include "mm-log-object.h"
 
+#include <string.h>
+
 /*****************************************************************************/
 
 MMModemCapability