diff --git a/src/pebblisp.c b/src/pebblisp.c
index 003dc15..8551dc9 100644
--- a/src/pebblisp.c
+++ b/src/pebblisp.c
@@ -468,17 +468,22 @@ int repl(struct Environment *env)
     }
 }
 
-int main(void)
+int main(int argc, const char* argv[])
 {
     struct Environment env = defaultEnv();
+    if(argc == 2) {
+        Object r = parseEval(argv[1], &env);
+        printAndClean(&r);
+    } else {
 #ifndef NO_REPL
-    repl(&env);
+        repl(&env);
 #else
-    Object r = parseEval("(def ad (fn (a) (+ 1 a)))", &env);
-    printAndClean(&r);
-    r = parseEval("(map ad (1 2 3))", &env);
-    //printAndClean(&r);
+        Object r = parseEval("(def ad (fn (a) (+ 1 a)))", &env);
+        printAndClean(&r);
+        r = parseEval("(map ad (1 2 3))", &env);
+        printAndClean(&r);
 #endif
+    }
     deleteEnv(&env);
 }
 #endif