diff --git a/modules/audio_coding/codecs/opus/opus_interface.cc b/modules/audio_coding/codecs/opus/opus_interface.cc
index 29aedf24b8..4bac365a89 100644
--- a/modules/audio_coding/codecs/opus/opus_interface.cc
+++ b/modules/audio_coding/codecs/opus/opus_interface.cc
@@ -376,12 +376,13 @@ int32_t WebRtcOpus_GetInDtx(OpusEncInst* inst) {
   if (!inst) {
     return -1;
   }
+#ifdef OPUS_GET_IN_DTX
   int32_t in_dtx;
   if (ENCODER_CTL(inst, OPUS_GET_IN_DTX(&in_dtx)) == 0) {
     return in_dtx;
-  } else {
-    return -1;
   }
+#endif
+  return -1;
 }
 
 int16_t WebRtcOpus_DecoderCreate(OpusDecInst** inst,