diff --git a/py/objstr.c b/py/objstr.c
index 9ff9106375..440f6347e7 100644
--- a/py/objstr.c
+++ b/py/objstr.c
@@ -68,7 +68,7 @@ void mp_str_print_quoted(void (*print)(void *env, const char *fmt, ...), void *e
     // this escapes characters, but it will be very slow to print (calling print many times)
     bool has_single_quote = false;
     bool has_double_quote = false;
-    for (const byte *s = str_data, *top = str_data + str_len; (!has_single_quote || !has_double_quote) && s < top; s++) {
+    for (const byte *s = str_data, *top = str_data + str_len; !has_double_quote && s < top; s++) {
         if (*s == '\'') {
             has_single_quote = true;
         } else if (*s == '"') {
diff --git a/py/qstr.h b/py/qstr.h
index fc93fe2c2a..9803e672ca 100644
--- a/py/qstr.h
+++ b/py/qstr.h
@@ -24,7 +24,7 @@
  * THE SOFTWARE.
  */
 
-// See qstrraw.h for a list of qstr's that are available as constants.
+// See qstrdefs.h for a list of qstr's that are available as constants.
 // Reference them as MP_QSTR_xxxx.
 //
 // Note: it would be possible to define MP_QSTR_xxx as qstr_from_str_static("xxx")