diff --git a/scripts/estimate_fg.sh b/scripts/estimate_fg.sh
index fbd1805..25d1611 100755
--- a/scripts/estimate_fg.sh
+++ b/scripts/estimate_fg.sh
@@ -191,7 +191,7 @@ encode_segments() {
         do
             BASE_VID="$(basename "$VIDEO")"
             OUTPUT_VIDEO="$SEGMENT_DIR/encoded/encoded_${BASE_VID}"
-            encode -P 10 -g "$GRAIN" -i "$VIDEO" "$OUTPUT_VIDEO"
+            encode -P 10 -g "$GRAIN" -i "$VIDEO" "$OUTPUT_VIDEO" || exit 1
             BITRATE="$(get_output_bitrate "$OUTPUT_VIDEO")"
             echo -e "\tgrain: $GRAIN, bitrate: $BITRATE" >> "$GRAIN_LOG"
         done