diff --git a/ml.cpp b/ml.cpp
index b07f556..565b289 100644
--- a/ml.cpp
+++ b/ml.cpp
@@ -1954,7 +1954,7 @@ int main(int argc, char *argv[]) {
 	    	for (size_t i = 0; i < files.size(); i++)
 				run(read_file_contents(files[i]), env);
 		// just one parameter - filename
-		} else if (argc == 2) {
+		} else if (argc == 2 && !cmdOptionExists(argv, argv + argc, "-b")) {
 			std::string file_content = read_file_contents(argv[1]);
 			if (file_content.find("#!") == 0)	// shebang ?
 				file_content.erase(0, file_content.find("\n") + 1);		// TODO mac osx newline??