diff --git a/silk/dec_API.c b/silk/dec_API.c
index 58b6b2b1..33146c04 100644
--- a/silk/dec_API.c
+++ b/silk/dec_API.c
@@ -69,6 +69,9 @@ opus_int silk_InitDecoder(                              /* O    Returns error co
     for( n = 0; n < DECODER_NUM_CHANNELS; n++ ) {
         ret  = silk_init_decoder( &channel_state[ n ] );
     }
+    silk_memset(&((silk_decoder *)decState)->sStereo, 0, sizeof(((silk_decoder *)decState)->sStereo));
+    /* Not strictly needed, but it's cleaner that way */
+    ((silk_decoder *)decState)->prev_decode_only_middle = 0;
 
     return ret;
 }