diff --git a/media/libstagefright/codecs/aacenc/src/adj_thr.c b/media/libstagefright/codecs/aacenc/src/adj_thr.c
index a8ab809f3f600..373b063039850 100644
--- a/media/libstagefright/codecs/aacenc/src/adj_thr.c
+++ b/media/libstagefright/codecs/aacenc/src/adj_thr.c
@@ -26,6 +26,7 @@
 #include "adj_thr.h"
 #include "qc_data.h"
 #include "line_pe.h"
+#include <string.h>
 
 
 #define  minSnrLimit    0x6666 /* 1 dB */
@@ -1138,6 +1139,7 @@ void AdjustThresholds(ADJ_THR_STATE   *adjThrState,
   Word16 maxBitresBits = elBits->maxBits;
   Word16 sideInfoBits = (qcOE->staticBitsUsed + qcOE->ancBitsUsed);
   Word16 ch;
+  memset(&peData, 0, sizeof(peData));
 
   prepareSfbPe(&peData, psyOutChannel, logSfbEnergy, sfbNRelevantLines, nChannels, AdjThrStateElement->peOffset);