diff --git a/tools/test-proxy/Azure.Sdk.Tools.TestProxy/Common/SanitizerDictionary.cs b/tools/test-proxy/Azure.Sdk.Tools.TestProxy/Common/SanitizerDictionary.cs
index 503fa332a8d..ffcbcf1ee00 100644
--- a/tools/test-proxy/Azure.Sdk.Tools.TestProxy/Common/SanitizerDictionary.cs
+++ b/tools/test-proxy/Azure.Sdk.Tools.TestProxy/Common/SanitizerDictionary.cs
@@ -238,7 +238,7 @@ public SanitizerDictionary() {
                     "AZSDK3002"
                 ),
                 new RegisteredSanitizer(
-                    new BodyRegexSanitizer(regex: "token=(?<token>[^&\\\"\\s\\n,\\\\)", groupForReplace: "token"),
+                    new BodyRegexSanitizer(regex: "token=(?<token>[^&\\\"\\s\\n,\\\\])", groupForReplace: "token"),
                     "AZSDK3003"
                 ),
                 new RegisteredSanitizer(