diff --git a/.build/build.ps1 b/.build/build.ps1
index 5f884fb..a1bf513 100644
--- a/.build/build.ps1
+++ b/.build/build.ps1
@@ -25,22 +25,24 @@ $PSDefaultParameterValues['*:ErrorAction'] = 'Stop'
 $repoRoot = (Resolve-Path "$PSScriptRoot\..").Path
 Push-Location $repoRoot
 
-$null = New-Item -Path build -ItemType Directory -Force
-cd build
-
-$env:VERBOSE = '1'
-
-cmake -DCMAKE_PREFIX_PATH="$GTestPath" -DSTRING_ENCODING_TYPE="$EncodingType" ..
-if ($LastExitCode -ne 0) {
-    throw "'cmake' exited with code $LastExitCode"
-}
-
-cmake --build . --config Debug
-if ($LastExitCode -ne 0) {
-    throw "'cmake --build' exited with code $LastExitCode"
+try {
+    $null = New-Item -Path build -ItemType Directory -Force
+    cd build
+
+    $env:VERBOSE = '1'
+
+    cmake -DCMAKE_PREFIX_PATH="$GTestPath" -DSTRING_ENCODING_TYPE="$EncodingType" ..
+    if ($LastExitCode -ne 0) {
+        throw "'cmake' exited with code $LastExitCode"
+    }
+
+    cmake --build . --config Debug
+    if ($LastExitCode -ne 0) {
+        throw "'cmake --build' exited with code $LastExitCode"
+    }
+
+    cp $GTestPath\debug\bin\*.dll tests\Debug
+    cp Debug\kaitai_struct_cpp_stl_runtime.dll tests\Debug
+} finally {
+    Pop-Location
 }
-
-cp $GTestPath\debug\bin\*.dll tests\Debug
-cp Debug\kaitai_struct_cpp_stl_runtime.dll tests\Debug
-
-Pop-Location