diff --git a/test/testdata/configs/reassign.yml b/test/testdata/configs/reassign.yml
new file mode 100644
index 000000000000..7037defc92e5
--- /dev/null
+++ b/test/testdata/configs/reassign.yml
@@ -0,0 +1,5 @@
+linter-settings:
+  reassign:
+    patterns:
+      - EOF
+      - DefaultClient
\ No newline at end of file
diff --git a/test/testdata/reassign.go b/test/testdata/reassign.go
index cdb4550a93ac..fdecde5feb0c 100644
--- a/test/testdata/reassign.go
+++ b/test/testdata/reassign.go
@@ -1,8 +1,13 @@
 //golangcitest:args -Ereassign
+//golangcitest:config_path testdata/configs/reassign.yml
 package testdata
 
-import "io"
+import (
+	"io"
+	"net/http"
+)
 
 func breakIO() {
-	io.EOF = nil // ERROR `reassigning variable EOF in other package io`
+	http.DefaultClient = nil // ERROR `reassigning variable DefaultClient in other package http`
+	io.EOF = nil             // ERROR `reassigning variable EOF in other package io`
 }