diff --git a/libraries/ESP_I2S/src/ESP_I2S.cpp b/libraries/ESP_I2S/src/ESP_I2S.cpp
index 0ac1e176dc8..77fa6177361 100644
--- a/libraries/ESP_I2S/src/ESP_I2S.cpp
+++ b/libraries/ESP_I2S/src/ESP_I2S.cpp
@@ -719,9 +719,15 @@ bool I2SClass::end() {
 #if SOC_I2S_SUPPORTS_TDM
     case I2S_MODE_TDM:
 #endif
-      perimanClearPinBus(_mclk);
-      perimanClearPinBus(_bclk);
-      perimanClearPinBus(_ws);
+      if(_mclk >= 0) {
+        perimanClearPinBus(_mclk);
+      }
+      if(_bclk >= 0) {
+        perimanClearPinBus(_bclk);
+      }
+      if(_ws >= 0) {
+        perimanClearPinBus(_ws);
+      }
       if (_dout >= 0) {
         perimanClearPinBus(_dout);
       }