diff --git a/libavcodec/aacdec_template.c b/libavcodec/aacdec_template.c
index 1e7afcc17b..6000fd890f 100644
--- a/libavcodec/aacdec_template.c
+++ b/libavcodec/aacdec_template.c
@@ -2551,7 +2551,7 @@ static void imdct_and_windowing(AACContext *ac, SingleChannelElement *sce)
         ac->mdct.imdct_half(&ac->mdct, buf, in);
 #if USE_FIXED
         for (i=0; i<1024; i++)
-          buf[i] = (buf[i] + 4) >> 3;
+          buf[i] = (buf[i] + 4LL) >> 3;
 #endif /* USE_FIXED */
     }