diff --git a/vcarve-pro-trial-11.0/update.sh b/vcarve-pro-trial-11.0/update.sh
index 49aa1f2..c64f19e 100755
--- a/vcarve-pro-trial-11.0/update.sh
+++ b/vcarve-pro-trial-11.0/update.sh
@@ -4,10 +4,11 @@ cd -- "$( dirname -- "${BASH_SOURCE[0]}" )"
 
 wget -N "https://storage.googleapis.com/vectric_public/VCarveProTrialEdition_Setup.exe" --directory-prefix tools/
 
-version=$(7z e -so tools/VCarveProTrialEdition_Setup.exe ProductInfo.ini | awk -F= '$1=="product_version" { print $2 }')
+file=tools/VCarveProTrialEdition_Setup.exe
+version=$(7z e -so $file ProductInfo.ini | awk -F= '$1=="product_version" { print $2 }')
 major_version=$(awk -F. -v RS='\r\n' '{print $1"."$2}' <<< $version)
 minor_version=$(awk -F. -v RS='\r\n' '{print $3"."$4}' <<< $version)
-checksum=$(sha256sum tools/VCarveProTrialEdition_Setup.exe | awk '{print $1}')
+checksum=$(sha256sum $file | awk '{print $1}')
 
 if [ "$major_version" != "11.0" ]
 then
@@ -17,5 +18,5 @@ fi
 
 echo "Current version for ${PWD##*/}: major=$major_version, minor=$minor_version, checksum=$checksum"
 
-sed -i "s|<version>[^<]*</version>|<version>$minor_version</version>|" vcarve-pro-trial-11.0.nuspec
+sed -i "s|<version>[^<]*</version>|<version>$minor_version</version>|" "${PWD##*/}.nuspec"
 sed -i "/Checksum64/s|=.*|= '$checksum'|" tools/chocolateyInstall.ps1