diff --git a/bin/pegjs b/bin/pegjs
index 3250367..084aece 100755
--- a/bin/pegjs
+++ b/bin/pegjs
@@ -120,22 +120,18 @@ var options = {
 
 while (args.length > 0 && isOption(args[0])) {
   switch (args[0]) {
-    case "-o":
-    case "--output":
+    case "--allowed-start-rules":
       nextArg();
       if (args.length === 0) {
-        abort("Missing parameter of the -o/--output option.");
+        abort("Missing parameter of the -e/--allowed-start-rules option.");
       }
-      outputFile = args[0];
+      options.allowedStartRules = args[0]
+        .split(",")
+        .map(trim);
       break;
 
-    case "-e":
-    case "--export-var":
-      nextArg();
-      if (args.length === 0) {
-        abort("Missing parameter of the -e/--export-var option.");
-      }
-      options.exportVar = args[0];
+    case "--cache":
+      options.cache = true;
       break;
 
     case "-d":
@@ -152,22 +148,40 @@ while (args.length > 0 && isOption(args[0])) {
       }
       break;
 
-    case "--cache":
-      options.cache = true;
+    case "-e":
+    case "--export-var":
+      nextArg();
+      if (args.length === 0) {
+        abort("Missing parameter of the -e/--export-var option.");
+      }
+      options.exportVar = args[0];
       break;
 
-    case "--allowed-start-rules":
+    case "--extra-options":
       nextArg();
       if (args.length === 0) {
-        abort("Missing parameter of the -e/--allowed-start-rules option.");
+        abort("Missing parameter of the --extra-options option.");
       }
-      options.allowedStartRules = args[0]
-        .split(",")
-        .map(trim);
+      addExtraOptions(options, args[0]);
       break;
 
-    case "--trace":
-      options.trace = true;
+    case "--extra-options-file":
+      nextArg();
+      if (args.length === 0) {
+        abort("Missing parameter of the --extra-options-file option.");
+      }
+      try {
+        var json = fs.readFileSync(args[0]);
+      } catch(e) {
+        abort("Can't read from file \"" + args[0] + "\".");
+      }
+      addExtraOptions(options, json);
+      break;
+
+    case "-h":
+    case "--help":
+      printHelp();
+      exitSuccess();
       break;
 
     case "-O":
@@ -182,6 +196,15 @@ while (args.length > 0 && isOption(args[0])) {
       options.optimize = args[0];
       break;
 
+    case "-o":
+    case "--output":
+      nextArg();
+      if (args.length === 0) {
+        abort("Missing parameter of the -o/--output option.");
+      }
+      outputFile = args[0];
+      break;
+
     case "--plugin":
       nextArg();
       if (args.length === 0) {
@@ -199,25 +222,8 @@ while (args.length > 0 && isOption(args[0])) {
       options.plugins.push(mod);
       break;
 
-    case "--extra-options":
-      nextArg();
-      if (args.length === 0) {
-        abort("Missing parameter of the --extra-options option.");
-      }
-      addExtraOptions(options, args[0]);
-      break;
-
-    case "--extra-options-file":
-      nextArg();
-      if (args.length === 0) {
-        abort("Missing parameter of the --extra-options-file option.");
-      }
-      try {
-        var json = fs.readFileSync(args[0]);
-      } catch(e) {
-        abort("Can't read from file \"" + args[0] + "\".");
-      }
-      addExtraOptions(options, json);
+    case "--trace":
+      options.trace = true;
       break;
 
     case "-v":
@@ -226,12 +232,6 @@ while (args.length > 0 && isOption(args[0])) {
       exitSuccess();
       break;
 
-    case "-h":
-    case "--help":
-      printHelp();
-      exitSuccess();
-      break;
-
     case "--":
       nextArg();
       break;