diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8f40ac1..9902b30 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `Get-PSModulePath`
   - Was using the wrong path separator on Linux and macOS.
+- `Get-LocalizedData`
+  - Wrongly returned one or more boolean values in addition to
+    the localized string array. This was becuase the return value
+    was not handled when calling `Add()` and `Remove()` methods of
+    `$PSBoundParameters` so it was returned to the pipeline.
 
 ## [0.17.0] - 2024-01-23
 
diff --git a/source/Public/Get-LocalizedData.ps1 b/source/Public/Get-LocalizedData.ps1
index e186e02..76514c6 100644
--- a/source/Public/Get-LocalizedData.ps1
+++ b/source/Public/Get-LocalizedData.ps1
@@ -255,7 +255,7 @@ function Get-LocalizedData
 
         $FileName = $file.BaseName
 
-        $PSBoundParameters.Add('FileName', $file.Name)
+        $null = $PSBoundParameters.Add('FileName', $file.Name)
 
         Write-Debug -Message ('Looking for resolved file with base name: ''{0}''.' -f $FileName)
     }
@@ -268,7 +268,7 @@ function Get-LocalizedData
     {
         $callingScriptRoot = $MyInvocation.PSScriptRoot
 
-        $PSBoundParameters.Add('BaseDirectory', $callingScriptRoot)
+        $null = $PSBoundParameters.Add('BaseDirectory', $callingScriptRoot)
     }
 
     # If UICulture wasn't specified use the OS configured one, otherwise use the one specified.
@@ -423,7 +423,7 @@ function Get-LocalizedData
         $PSBoundParameters.Keys.ForEach({
             if ($_ -notin $getLocalizedDataForInvariantCultureParameters.Parameters.Keys)
             {
-                $PSBoundParameters.Remove($_)
+                $null = $PSBoundParameters.Remove($_)
             }
         })
 
@@ -437,7 +437,7 @@ function Get-LocalizedData
         Write-Debug ('Calling Microsoft.PowerShell.Utility\Import-LocalizedData using parameters: {0}' -f ($PSBoundParameters | Out-String))
 
         # Removes the parameter DefaultUICulture so that isn't used when calling Import-LocalizedData.
-        $PSBoundParameters.Remove('DefaultUICulture')
+        $null = $PSBoundParameters.Remove('DefaultUICulture')
 
         $localizedData = Microsoft.PowerShell.Utility\Import-LocalizedData @PSBoundParameters
     }
diff --git a/tests/Unit/Public/Get-LocalizedData.Tests.ps1 b/tests/Unit/Public/Get-LocalizedData.Tests.ps1
index d123d95..02fb7b1 100644
--- a/tests/Unit/Public/Get-LocalizedData.Tests.ps1
+++ b/tests/Unit/Public/Get-LocalizedData.Tests.ps1
@@ -46,6 +46,13 @@ AfterAll {
 }
 
 Describe 'Get-LocalizedData' -Tag 'GetLocalizedData' {
+    Context 'When returning localized data from a file' {
+        It 'Should return an hashtable' {
+            $result = Get-LocalizedData -FileName 'DscResource.Common.strings.psd1' -BaseDirectory "$PSScriptRoot/../../../output/builtModule/DscResource.Common/**/en-US" -DefaultUICulture 'en-US' -ErrorAction 'Stop'
+            $result | Should -BeOfType 'Hashtable'
+        }
+    }
+
     Context 'When specifying a specific filename' {
         BeforeAll {
             New-Item -Force -Path 'TestDrive:\ar-SA' -ItemType Directory