diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2c59ea0380153..cef0df18d7328 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -84,7 +84,7 @@ jobs:
                     New-Partition -AssignDriveLetter -UseMaximumSize |
                     Format-Volume -FileSystem ReFS -Confirm:$false -Force
           Write-Output $Volume
-          Write-Output "DEV_DRIVE=$($Volume.DriveLetter)`:" >> $env:GITHUB_ENV
+          Write-Output "DEV_DRIVE=$($Volume.DriveLetter):" >> $env:GITHUB_ENV
 
       - uses: actions/checkout@v4
 
@@ -179,7 +179,7 @@ jobs:
                     New-Partition -AssignDriveLetter -UseMaximumSize |
                     Format-Volume -FileSystem ReFS -Confirm:$false -Force
           Write-Output $Volume
-          Write-Output "DEV_DRIVE=$($Volume.DriveLetter)`:" >> $env:GITHUB_ENV
+          Write-Output "DEV_DRIVE=$($Volume.DriveLetter):" >> $env:GITHUB_ENV
 
       - uses: actions/checkout@v4
 
@@ -255,7 +255,7 @@ jobs:
                     New-Partition -AssignDriveLetter -UseMaximumSize |
                     Format-Volume -FileSystem ReFS -Confirm:$false -Force
           Write-Output $Volume
-          Write-Output "DEV_DRIVE=$($Volume.DriveLetter)`:" >> $env:GITHUB_ENV
+          Write-Output "DEV_DRIVE=$($Volume.DriveLetter):" >> $env:GITHUB_ENV
 
       - uses: actions/checkout@v4
 
@@ -374,7 +374,7 @@ jobs:
                     New-Partition -AssignDriveLetter -UseMaximumSize |
                     Format-Volume -FileSystem ReFS -Confirm:$false -Force
           Write-Output $Volume
-          Write-Output "DEV_DRIVE=$($Volume.DriveLetter)`:" >> $env:GITHUB_ENV
+          Write-Output "DEV_DRIVE=$($Volume.DriveLetter):" >> $env:GITHUB_ENV
 
       - uses: actions/checkout@v4