diff --git a/.config/CredScanSuppressions.json b/.config/CredScanSuppressions.json
index 4b0f239c..07a6e763 100644
--- a/.config/CredScanSuppressions.json
+++ b/.config/CredScanSuppressions.json
@@ -4,6 +4,10 @@
         {
             "file": "\\src\\Calculator\\WindowsDev_TemporaryKey.pfx",
             "_justification": "This is an untrusted, self-signed certificate which is used only during development. Its private key is not intended to be secret."
+        },
+        {
+            "file": "\\src\\CalculatorUnitTests\\WindowsDev_TemporaryKey.pfx",
+            "_justification": "This is an untrusted, self-signed certificate which is used only during development. Its private key is not intended to be secret."
         }
     ]
 }