diff --git a/src/vstest.console/Internal/FilePatternParser.cs b/src/vstest.console/Internal/FilePatternParser.cs
index 804739ca7e..315f9a9059 100644
--- a/src/vstest.console/Internal/FilePatternParser.cs
+++ b/src/vstest.console/Internal/FilePatternParser.cs
@@ -28,6 +28,7 @@ public class FilePatternParser
     private readonly Matcher _matcher;
     private readonly IFileHelper _fileHelper;
     private readonly char[] _wildCardCharacters = ['*'];
+    private readonly char[] _directorySeparatorCharacters = [Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar];
 
     public FilePatternParser()
         : this(new Matcher(), new FileHelper())
@@ -96,7 +97,7 @@ private Tuple<string, string> SplitFilePatternOnWildCard(string filePattern)
     {
         // Split the pattern based on first wild card character found.
         var splitOnWildCardIndex = filePattern.IndexOfAny(_wildCardCharacters);
-        var directorySeparatorIndex = filePattern.Substring(0, splitOnWildCardIndex).LastIndexOf(Path.DirectorySeparatorChar);
+        var directorySeparatorIndex = filePattern.Substring(0, splitOnWildCardIndex).LastIndexOfAny(_directorySeparatorCharacters);
 
         string searchDir = filePattern.Substring(0, directorySeparatorIndex);
         string pattern = filePattern.Substring(directorySeparatorIndex + 1);
diff --git a/test/vstest.console.UnitTests/Internal/FilePatternParserTests.cs b/test/vstest.console.UnitTests/Internal/FilePatternParserTests.cs
index 571936d859..ed42ad2aca 100644
--- a/test/vstest.console.UnitTests/Internal/FilePatternParserTests.cs
+++ b/test/vstest.console.UnitTests/Internal/FilePatternParserTests.cs
@@ -43,6 +43,18 @@ public void FilePatternParserShouldCorrectlySplitPatternAndDirectory()
         _mockMatcherHelper.Verify(x => x.Execute(It.Is<DirectoryInfoWrapper>(y => y.FullName.Equals(TranslatePath(@"C:\Users\vanidhi\Desktop\a\c")))));
     }
 
+    [TestMethod]
+    public void FilePatternParserShouldCorrectlySplitPatternAndDirectoryWithAlternateSeparator()
+    {
+        var patternMatchingResult = new PatternMatchingResult(new List<FilePatternMatch>());
+        _mockMatcherHelper.Setup(x => x.Execute(It.IsAny<DirectoryInfoWrapper>())).Returns(patternMatchingResult);
+        _filePatternParser.GetMatchingFiles(TranslatePath(@"C:/Users/vanidhi/Desktop/a/c/*bc.dll"));
+
+        // Assert
+        _mockMatcherHelper.Verify(x => x.AddInclude(TranslatePath(@"*bc.dll")));
+        _mockMatcherHelper.Verify(x => x.Execute(It.Is<DirectoryInfoWrapper>(y => y.FullName.Equals(TranslatePath(@"C:\Users\vanidhi\Desktop\a\c")))));
+    }
+
     [TestMethod]
     public void FilePatternParserShouldCorrectlySplitWithArbitraryDirectoryDepth()
     {