diff --git a/libavcodec/g723_1.h b/libavcodec/g723_1.h
index 521f220b2a..f3cd32e37d 100644
--- a/libavcodec/g723_1.h
+++ b/libavcodec/g723_1.h
@@ -108,7 +108,7 @@ typedef struct HFParam {
  * Optimized fixed codebook excitation parameters
  */
 typedef struct FCBParam {
-    int min_err;
+    int64_t min_err;
     int amp_index;
     int grid_index;
     int dirac_train;
diff --git a/libavcodec/g723_1enc.c b/libavcodec/g723_1enc.c
index ee5b0fe251..4fd4567a87 100644
--- a/libavcodec/g723_1enc.c
+++ b/libavcodec/g723_1enc.c
@@ -1013,7 +1013,7 @@ static void fcb_search(G723_1_ChannelContext *p, int16_t *impulse_resp,
     int pulse_cnt = pulses[index];
     int i;
 
-    optim.min_err = 1 << 30;
+    optim.min_err = 1LL << 31;
     get_fcb_param(&optim, impulse_resp, buf, pulse_cnt, SUBFRAME_LEN);
 
     if (p->pitch_lag[index >> 1] < SUBFRAME_LEN - 2) {