diff --git a/lib/scanner.js b/lib/scanner.js
index 2fdd5ed..cac155a 100644
--- a/lib/scanner.js
+++ b/lib/scanner.js
@@ -156,6 +156,21 @@ var AS3Scanner = (function () {
     AS3Scanner.prototype.scanRegExp = function () {
         var currentIndex = this.index;
         var token = this.scanUntilDelimiter('/');
+        var peekPos = 1;
+        var flagBuffer = '';
+        for (;;) {
+            var currentCharacter = this.peekChar(peekPos++);
+            if (/[a-z]/.test(currentCharacter)) {
+                flagBuffer += currentCharacter;
+            }
+            else {
+                break;
+            }
+        }
+        if (flagBuffer.length) {
+            token.text += flagBuffer;
+            this.index += flagBuffer.length;
+        }
         if (token != null && this.isValidRegExp(token.text)) {
             return token;
         }
diff --git a/src/main/scanner.ts b/src/main/scanner.ts
index 409a0ef..d7930e6 100644
--- a/src/main/scanner.ts
+++ b/src/main/scanner.ts
@@ -162,6 +162,20 @@ class AS3Scanner {
     public scanRegExp(): Token {
         var currentIndex = this.index;
         var token: Token = this.scanUntilDelimiter('/');
+        var peekPos = 1;
+        var flagBuffer = '';
+        for (;;) {
+            var currentCharacter: string = this.peekChar(peekPos++);
+            if (/[a-z]/.test(currentCharacter)) {
+                flagBuffer += currentCharacter;
+            } else {
+                break;
+            }
+        }
+        if (flagBuffer.length) {
+            token.text += flagBuffer;
+            this.index += flagBuffer.length
+        }
         if (token != null  && this.isValidRegExp(token.text)) {
             return token;
         } else {