diff --git a/libraries/AC_AutoTune/AC_AutoTune_FreqResp.cpp b/libraries/AC_AutoTune/AC_AutoTune_FreqResp.cpp
index 5c5105e1daa037..91c818397464d7 100644
--- a/libraries/AC_AutoTune/AC_AutoTune_FreqResp.cpp
+++ b/libraries/AC_AutoTune/AC_AutoTune_FreqResp.cpp
@@ -308,6 +308,6 @@ void AC_AutoTune_FreqResp::set_dwell_cycles(uint8_t cycles)
     if (meas_peak_info_buffer != nullptr) { delete meas_peak_info_buffer;}
     meas_peak_info_buffer = new ObjectBuffer<peak_info>(cycles);
     if (tgt_peak_info_buffer != nullptr) { delete tgt_peak_info_buffer;}
-    tgt_peak_info_buffer = new ObjectBuffer<peak_info>(cycles);
+    tgt_peak_info_buffer = NEW_NOTHROW ObjectBuffer<peak_info>(cycles);
 
 }