diff --git a/ports/pic16bit/main.c b/ports/pic16bit/main.c
index adb9276071..e6481bafb6 100644
--- a/ports/pic16bit/main.c
+++ b/ports/pic16bit/main.c
@@ -29,6 +29,7 @@
 #include <string.h>
 #include <p33Fxxxx.h>
 
+#include "py/builtin.h"
 #include "py/compile.h"
 #include "py/runtime.h"
 #include "py/gc.h"
diff --git a/ports/pic16bit/mpconfigport.h b/ports/pic16bit/mpconfigport.h
index 52b1701ea3..e97a465028 100644
--- a/ports/pic16bit/mpconfigport.h
+++ b/ports/pic16bit/mpconfigport.h
@@ -29,6 +29,7 @@
 // options to control how MicroPython is built
 #define MICROPY_OBJ_REPR            (MICROPY_OBJ_REPR_B)
 #define MICROPY_ALLOC_PATH_MAX      (64)
+#define MICROPY_QSTR_BYTES_IN_HASH  (1)
 #define MICROPY_EMIT_X64            (0)
 #define MICROPY_EMIT_THUMB          (0)
 #define MICROPY_EMIT_INLINE_THUMB   (0)