diff --git a/copyparty/__version__.py b/copyparty/__version__.py
index 641c70e5..c1d490f0 100644
--- a/copyparty/__version__.py
+++ b/copyparty/__version__.py
@@ -1,7 +1,7 @@
 # coding: utf-8
 
 VERSION = (0, 2, 3)
-BUILD_DT = (2020, 1, 19)
+BUILD_DT = (2020, 4, 27)
 
 S_VERSION = ".".join(map(str, VERSION))
 S_BUILD_DT = "{0:04d}-{1:02d}-{2:02d}".format(*BUILD_DT)
diff --git a/scripts/make-unix-sfx.sh b/scripts/make-unix-sfx.sh
old mode 100644
new mode 100755
index 7926fea2..545af5cc
--- a/scripts/make-unix-sfx.sh
+++ b/scripts/make-unix-sfx.sh
@@ -62,6 +62,7 @@ dir="$(
 	awk '/./ {print; exit}'
 )/pe-copyparty"
 
+printf '%s\n' "$pybin" | grep -qE ... && [ -e "$pybin" ] && py="$pybin" ||
 py="$(command -v python3)" ||
 py="$(command -v python)"  ||
 py="$(command -v python2)" || {
@@ -84,7 +85,9 @@ py="$(command -v python2)" || {
 	
 	now=$(date -u +%s)
 	for d in "$dir".*; do
-		ts=$(stat -c%Y -- "$d")
+		ts=$(stat -c%Y -- "$d" 2>/dev/null) ||
+		ts=$(stat -f %m%n -- "$d" 2>/dev/null)
+
 		[ $((now-ts)) -gt 300 ] &&
 			rm -rf "$d"
 	done