diff --git a/Sources/Protocols/Formable.swift b/Sources/Protocols/Formable.swift
index a4d4c09..2db4bc4 100644
--- a/Sources/Protocols/Formable.swift
+++ b/Sources/Protocols/Formable.swift
@@ -27,7 +27,7 @@ public extension Formable {
         case .source:
             return "\(source)"
         case .file:
-            return "\(file)"
+            return "\(URL(fileURLWithPath: file).lastPathComponent)"
         case .function:
             return "\(function)"
         case .line: