diff --git a/util.go b/util.go
index f107f33..f1b062f 100644
--- a/util.go
+++ b/util.go
@@ -177,3 +177,12 @@ func parseProfile(user legacyUser) Profile {
 
 	return profile
 }
+
+func stringInSlice(a string, list []string) bool {
+	for _, b := range list {
+		if b == a {
+			return true
+		}
+	}
+	return false
+}