diff --git a/src/resources/i2s_esp32.cc b/src/resources/i2s_esp32.cc
index 45a05ae25..ced860c07 100644
--- a/src/resources/i2s_esp32.cc
+++ b/src/resources/i2s_esp32.cc
@@ -300,7 +300,7 @@ PRIMITIVE(create) {
       .din = rx_pin >= 0 ? static_cast<gpio_num_t>(rx_pin): I2S_GPIO_UNUSED,
       .invert_flags = {
         .mclk_inv = mclk_inv,
-        .bclk_inv = sck_inv,
+        .bclk_inv = (rx_pin != -1  && tx_pin == -1) ? true : sck_inv,
         .ws_inv = ws_inv,
       },
     },