diff --git a/analyzers/src/SonarAnalyzer.Common/Helpers/WildcardPatternMatcher.cs b/analyzers/src/SonarAnalyzer.Common/Helpers/WildcardPatternMatcher.cs
index 3e8e677a11c..dfdf331194c 100644
--- a/analyzers/src/SonarAnalyzer.Common/Helpers/WildcardPatternMatcher.cs
+++ b/analyzers/src/SonarAnalyzer.Common/Helpers/WildcardPatternMatcher.cs
@@ -60,7 +60,7 @@ public bool Match(string value)
 
         private static string ToRegex(string wildcardPattern)
         {
-            var escapedDirectorySeparator = '\\' + Path.DirectorySeparatorChar.ToString();
+            var escapedDirectorySeparator = Regex.Escape(Path.DirectorySeparatorChar.ToString());
             var sb = new StringBuilder(wildcardPattern.Length);
 
             sb.Append('^');
@@ -73,7 +73,7 @@ private static string ToRegex(string wildcardPattern)
                 if (SpecialChars.Contains(ch))
                 {
                     // Escape regex-specific characters
-                    sb.Append('\\').Append(ch);
+                    sb.Append(Regex.Escape(ch.ToString()));
                 }
                 else if (ch == '*')
                 {