diff --git a/dastworx/src/main.d b/dastworx/src/main.d
index cc6fa7eb..60f9b2e5 100644
--- a/dastworx/src/main.d
+++ b/dastworx/src/main.d
@@ -42,7 +42,8 @@ void main(string[] args)
             source.put(buffer);
         if (!source.data.length)
         {
-            files = args[1].splitter(pathSeparator).array;
+            import std.file: exists;
+            files = args[1].splitter(pathSeparator).filter!exists.array;
             version(devel) writeln(files);
         }
     }
diff --git a/dastworx/src/mainfun.d b/dastworx/src/mainfun.d
index 8273b8a1..4285eb22 100644
--- a/dastworx/src/mainfun.d
+++ b/dastworx/src/mainfun.d
@@ -16,8 +16,8 @@ import
  * if the main is injected by a mixin template or by a string it is not detected,
  * if the main is deactivated by a static condition neither.
  *
- * The result is used by to detect if the "-main" switch has to be passed to
- * the compiler.
+ * The result is used to determine if the "-main" switch has to be passed to
+ * the compiler when a runnable module is executed or a module tested.
  */
 void detectMainFun(const(Module) mod)
 {