diff --git a/qrt/grader.py b/qrt/grader.py
index 0c8728b..0ff92c3 100644
--- a/qrt/grader.py
+++ b/qrt/grader.py
@@ -305,7 +305,7 @@ def generate_image(string, debug=False):
 				draw_triangle(im, points, cell, size)
 	return im
 
-FLAG = "are_triangles_more_secure_than_squares?_%s}"
+FLAG = "are_triangles_more_secure_than_squares?_%s"
 
 def get_salt(random):
 	salt = "".join([random.choice("0123456789abcdef") for i in range(8)])
diff --git a/qrt/qrt.py b/qrt/qrt.py
index d72640e..4175d36 100644
--- a/qrt/qrt.py
+++ b/qrt/qrt.py
@@ -36,7 +36,7 @@ def getspace(size):
 def generate(string, debug=False):
 	size = 0
 	binstring = bin(int(string.encode("hex"), 16)).strip("0b")
-	while size < 2 or getspace(size + 1) < len(binstring):
+	while size < 3 or getspace(size + 1) - 8 < len(binstring):
 		size += 1
 	n = getspace(size)
 	# print size, len(binstring)
diff --git a/qrt/qrt.pyc b/qrt/qrt.pyc
deleted file mode 100644
index 02316a0..0000000
Binary files a/qrt/qrt.pyc and /dev/null differ