diff --git a/wifi/capture.sh b/wifi/capture.sh
index 9aa45b5..ee8fb92 100755
--- a/wifi/capture.sh
+++ b/wifi/capture.sh
@@ -214,7 +214,7 @@ HOSTNAME=`uname -n`
 DATE=`date +%FT%H%M%S`
 # Temporary destination directory:
 DESTDIR=$(mktemp -d \
-	"$TMP"/capture_${OS}-${OS_RELEASE}_${IFACE}_${HOSTNAME}_${DATE}_XX)
+	"$TMP"/capture_${OS}-${OS_RELEASE}_${IFACE}_${HOSTNAME}_${DATE}_XXX)
 # Update capture file with full path:
 FILE="$DESTDIR/$FILE"