1 files changed, 1 insertions, 0 deletions

diff --git a/stm/i2c.c b/stm/i2c.c
index 8503f26647..1dfd74a8d9 100644
--- a/stm/i2c.c
+++ b/stm/i2c.c
@@ -5,6 +5,7 @@
 #include "misc.h"
 #include "systick.h"
 #include "mpconfig.h"
+#include "qstr.h"
 #include "obj.h"
 
 typedef enum {