diff --git a/.gpg2f/scripts/show-notification/auto.sh b/.gpg2f/scripts/show-notification/auto.sh
index 342af63..45208ee 100755
--- a/.gpg2f/scripts/show-notification/auto.sh
+++ b/.gpg2f/scripts/show-notification/auto.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
-if which java >/dev/null; then
+if which java >/dev/null 2>/dev/null; then
     . .gpg2f/scripts/show-notification/java.sh "$@"
-elif which powershell >/dev/null; then
+elif which powershell >/dev/null 2>/dev/null; then
     . .gpg2f/scripts/show-notification/powershell.sh "$@"
 fi
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ec74482..a16638d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Change Log
 
+## [1.0.1](https://github.com/david-04/gpg2f/releases/tag/v1.0.0) (2024-04-13)
+
+- Suppress warnings when Java or PowerShell is not installed
+- Prevent double path separator (`//`) in `encrypt.bat` and `decrypt.bat`
+
 ## [1.0.0](https://github.com/david-04/gpg2f/releases/tag/v1.0.0) (2024-04-05)
 
 - First release
diff --git a/decrypt.bat b/decrypt.bat
index 34461b8..b133976 100644
--- a/decrypt.bat
+++ b/decrypt.bat
@@ -1,3 +1,3 @@
 @echo off
 set GPG2F_DECRYPT_DIRECTORY=%~dp0
-env %GPG2F_DECRYPT_DIRECTORY:\=/%/decrypt.sh %*
+env %GPG2F_DECRYPT_DIRECTORY:\=/%decrypt.sh %*
diff --git a/encrypt.bat b/encrypt.bat
index 4d3901a..791771e 100644
--- a/encrypt.bat
+++ b/encrypt.bat
@@ -1,3 +1,3 @@
 @echo off
 set GPG2F_ENCRYPT_DIRECTORY=%~dp0
-env %GPG2F_ENCRYPT_DIRECTORY:\=/%/encrypt.sh %*
+env %GPG2F_ENCRYPT_DIRECTORY:\=/%encrypt.sh %*