diff --git a/common_audio/signal_processing/filter_ar.c b/common_audio/signal_processing/filter_ar.c
index 2471cd1117..b1f666d723 100644
--- a/common_audio/signal_processing/filter_ar.c
+++ b/common_audio/signal_processing/filter_ar.c
@@ -87,7 +87,7 @@ size_t WebRtcSpl_FilterAR(const int16_t* a,
         for (i = 0; i < x_length; i++)
         {
             state[state_length - x_length + i] = filtered[i];
-            state[state_length - x_length + i] = filtered_low[i];
+            state_low[state_length - x_length + i] = filtered_low[i];
         }
     }