diff --git a/module_usb_audio/endpoint0/descriptors.h b/module_usb_audio/endpoint0/descriptors.h
index ceb00ef0..974f5138 100644
--- a/module_usb_audio/endpoint0/descriptors.h
+++ b/module_usb_audio/endpoint0/descriptors.h
@@ -270,7 +270,6 @@ enum {
 #ifdef IAP
     #ifdef MIXER
     IAP_INTERFACE_STRING_INDEX = INPUT_INTERFACE_LAST_STRING_INDEX + MAX_MIX_COUNT + 1,
-#error
     #else
     IAP_INTERFACE_STRING_INDEX = INPUT_INTERFACE_LAST_STRING_INDEX + 1,
     #endif