diff --git a/config/exclusions/php.yaml b/config/exclusions/php.yaml
new file mode 100644
index 00000000..e73d552f
--- /dev/null
+++ b/config/exclusions/php.yaml
@@ -0,0 +1,5 @@
+exclusions:
+  - id: Exclusions.Test
+    name: Exclude test source code
+    patterns:
+      - "(.*(?i)Tests/.*)|/.*Test.php"
diff --git a/rules/sinks/third_parties/sdk/segment/php.yaml b/rules/sinks/third_parties/sdk/segment/php.yaml
index 6b7b05f2..7fb95948 100644
--- a/rules/sinks/third_parties/sdk/segment/php.yaml
+++ b/rules/sinks/third_parties/sdk/segment/php.yaml
@@ -9,5 +9,5 @@ sinks:
     domains:
       - "segment.com"
     patterns:
-      - "(?i).*(segment).*"
+      - "(?i)(Segment\\\\Segment).*"
     tags: